Rating: 5 / 5
I purchased a 60x20x2.5 mummy shaped R5 Synthetic filled pad from Kookabay back in January, received it early February, and have had the pleasure of spending around 30+ nights on it so far.
I can honestly say, this was one of the best pieces of kit I have ever had. This thing is ridiculously light, warmer than most of the pads I've ever used, and compacts down to fit pretty much wherever you need to fit it in your pack. When I first received the pad, I thought the valve was flimsy and would break in no-time, but it really has held up great. I have seen no evidence that it will break any time soon.
Storing it is easy (I still just use the rubber band that it was shipped with) and inflating it is a piece of cake, with a BA pumphouse stuff sack. I use the stuff sack anyways for clothes and stuff (not that I need to use it, but might as well since its going to be in the pack anyways), and within 5 bags of air, it is filled, then I top it off with my lungs (less than one breath) and seal it up.
Its seriously comfortable (much better than the REI pads I had before this) and stays inflated throughout the night.
Honestly I can't think of anything more I would want out of a sleeping pad, this just hit the nail on the head.