Just got back from my first multi-night trip with my new gear and thought I'd post some thoughts on it for beginners who may be in the same boat as I am with making selections.
My trip was a 2 night stay in the White Mountains. First day was clear with temperatures around 75F. That night was rainy, with a low of around 32F. The following day was rainy, with a high of around 60F, with that night again around 35F and clear. The following day was around 65F.
Big Agnes Copper Spur UL3: I have both the UL1 and UL3 version of this tent and brought the UL3 since I was going with another person. First let me say, setting up this tent was extremely easy. I wound up leaving the rain fly off (forecast didn't call for rain) but awoke at 2am to a downpour and had to set it up in a hurry. Went on in second and couldn't have been more hassle free. I suggest putting a few pieces of tape to help mark which is the long vs short orientation, as the 2014 model apparently lacks these, but other than that, loved the tent. It was huge for 2 people though, even with both our bags in with us, but better too much than too little space. The UL1 seems much better sized for just one person + some gear. The footprint wasn't necessary but it was appreciated, as the ground wasn't completely clear, and I didn't want to eat a hole through the floor. May or may not continue to use the footprint, depending on how much wear it receives (made from same material as floor).
Feathered Friends Hummingbird UL 20: Loved this bag. It's light, fit me perfectly, and most importantly, was beyond warm. It's rated to 20F and I have no doubt that it could probably go bellow that. It was 32F out and I had the bag unzipped most of the way.
Therm-A-Rest NeoAir XLite: Extremely comfortable. Took a bit to blow it up, but I didn't really notice much of the noise that other people have spoken about.
Cocoon Silk Bag Liner: I'm fairly "meh" about this one. On one hand, it was a bit nice to have since I had a fire going earlier in the day and didn't want the smell to transfer to the bag, but on the other hand, it was a bit of a hassle to get in and out of both the liner and bag, and half the time, I couldn't really tell if I liner was up all the way or bunched down a bit (which would defeat its purpose). I think I'll only be including this in cooler weather or in situations where I may be especially prone to sweat / odor buildup.
Exped Air Pillow: One of the things that let me down the most. I did not find this pillow comfortable at all. Fully inflated, it was a bit too thick and stiff for my liking. Deflated, it was fairly bouncy and had this "rolling" effect. I've since ordered a down pillow case from GooseFeet and hope that will help with the comfort a bit. I should say that I'm used to a massively plush Tempur-Pedic pillow (aka spoiled) and the lack of comfort was more due to my preference than the design.
Source WXP Hydration Pack: As far as hydration packs go, this is without a doubt the best one out there in my opinion. Build bullet proof, highly configurable, don't need to remove it to refill, and doesn't impart any taste what so ever. That said, I could see going without a hydration pack in the future and simply doing with a couple of 32oz bottles. For now, it's nice to have, more of a convenience thing.
Sawyer Squeeze Filter: Not much to say. Great filter, easy to use. I'll be ditching the 32oz bag in favor of two 64oz. Only 10g more and makes it much easier to gather water at the end of the day, especially considering it's difficult to fully fill the bags.
Snow Peak Titanium Spork: Loved the design, hated the length. Couldn't reach in any bags, stir pots, etc. Found that Snow Peak makes an extension that also has a removable spatula attached to the end. Going to try this out and see how stable it is.
MSR Reactor 1.0L: Yes, compared to most alcohol stoves it weighs a ton. But when I woke up and tried to make a cup of coffee in the howling wind and pouring rain, it was well worth every ounce of extra weight. Started right up, boiled water in what seemed like an instant, and packed up just as quick. Loved it, really made the basic essentials of food that much simpler. Obviously not a good choice for something like a through hike, but for 1-4 night trips, where 2 canisters would suffice, absolute home run.
Snow Peak 700 / Nalgene HDPE: Wound up bringing both and was glad I did. Snow Peak was perfect to enjoy some sports drink in the evening and coffee in the morning. Nalgene served as a great measuring cup / water dispenser. I could have potentially saved an ounce bringing a gatorade bottle and pre-marking volumes on it, but my friend was actually a bit chilly so I filled the Naglene with some hot water and she used it as a heater. Will likely bring both again, especially since they nestle in one another. Left the Snow Peak lid at home since it was comparatively very heavy (made from steel I think) and I had no use for it.
SteriPen Ultra: Didn't use it. Already had a backup (Aquamira tabs), so this was truly redundant. Will leave at home.
Light My Fire Army Flint: Useless for me. Second night, everything was soaked through, so this was basically of no help, especially considering I had both matches and a lighter and could have easily gone without a fire all together.
Wetfire: These little blocks came in very useful the second night to help get a fire started with very wet wood. Put one in the center, lit right up, and got things going. Weigh relatively little and worked great. Will be throwing one or two in again.
Benchmade Presidio Mini: Wound up not using this even once. The Leatherman may have come in a bit useful, just for its wood saw, but I could have easily done without either. Going forward, I may get a much smaller blade just in case of emergency.
Garmin 64S GPS: So amazingly happy I brought this. Wound up having to improvise our hike a little due to a trail outage, and this came in useful. Was great to be able to mark the bear bag, scan around, and just have a no hassle way of navigating. Could have certainly done the same with a map and compass, but it just allowed me to focus much more on the hike, and much less on "book-keeping."
Arcteryx Alpha SV: I know a lot of people frown upon such a heavy jacket, but I love this piece. It kept me bone dry despite the downpour, and as always, held up to everything I threw at it (which included a couple dozen hard scrapes against rocks and trees). Can't speak highly enough about it. People who say "you're bound to get wet if it's raining" never tried this jacket. I've climbed in weather that most people wouldn't leave the house, and wearing this, I made through the day without a single drop on me. The Cerium LT I brought with me performed great as well, though it was only needed for a couple hours in the morning (very glad I had it for those few hours though).
Utility Cord (50'): Going to be finding a lighter option for this, and probably less than 50' in length. Likewise for the carabiner (just one of my climbing ones I grabbed). I'm sure I could have easily made do with a much lighter setup for hanging a bear bag.
Arcteryx Altra 65: From everything I read, this bag was touted as the most comfortable one of it's kind, and I have no doubt about that. Barely noticed it, despite my load. I tried some UL bags following people's suggestions in this forum, and though they may have been a few pounds lighter, they felt words heavier to me due to the lack of support and load transfer. Will be keeping this bag for a while. and would recommend anyone in the same shoes as I to find the most comfortable bag, since perceived weight is far more important than actual weight when we're talking 1% body weight.
Arcteryx Pack Cover: Will not be including this going forward. Everything that was water sensitive was already in a waterproof stuff sack, and everything else had no issue getting wet. Only upside would maybe be the fact that if you bring your bag in the tent with you, it would potentially be a bit less wet, but having not used the cover myself (just didn't want to bother with it), I can't say for sure.
Finally, a few things I'll be including for next time that I didn't this time:
Small square of painters plastic: would be nice to have something to sit on while preparing food or sitting around the fire. Something maybe 2x2ft, lightweight, and disposable if it gets ripped up. Likely going to go to Home Depot and just buy a large roll of painters plastic and use that.
GooseFeet Down Pillow Case: As mentioned above, to help with the Exped UL pillow.
Snow Peak Extension / Spatula: As mentioned above, adds length when needed, and spatula can be removed to save weight if you don't need it.
Sponge: Will be bringing a very small square of sponge (1x1in) to help with cleanup. Made the Packit Gourmet pasta which left the pot rather dirty. Used my hands, but sponge would have been much easier. Weighs virtually nothing while dry too.