Has anyone had experience with it in strong winds/rain? How does it hold up? I don't mean relative to a tarp I mean relative to other high end tents like the Black Diamond Hilight 2 etc.

Thanks

Even though you didn't exactly ask for alternative recommendations, my personal top choice for a 2 person tent is the SMD Lunar Duo. I'm 6'5" tall so fit was important. The Lunar Duo is light, VERY spacious, and reasonably durable. It is NOT freestanding and requires you to use your hiking poles (or carry other poles) for pitching, but the two big vestibules and expansive netting make it less subject to the condensation that can be associated with tarptents.

I considered other choices but at the time (roughly a year ago) there weren't other choices that offered the same combined light weight, small packed size and inner room with adequate warm weather ventilation.

Ummm, well, I know you want a "double walled" tent, but IMHO you can't go past the tarptent Double Rainbow with optional liner. This is as good as a double walled tent, with two vestibules and two entrances, and is roomier and lighter than the Big Agnes. It also has really nice "rain porches", and can be set up pretty bombproof for high winds if you use trekking poles. We use 24 inch wide down mats in it, and 'top and tail' for a perfect roomy fit.

It works for two. Here is a CS2 with a regular NeoAir and a BA IAC long mummy.

The CS2 and 3 handle wind very well. The 3 is totally symmetrical and sheds wind from all angles.

And I am the guy that is selling the Revolution 2p w/porch. (It is my brother-in-laws)

The BA CS2 is fine for a couple. Although the tent has the same floor area as a Seedhouse, the CS2 has significantly more internal volume (ie nearly vertical side and end walls, so a lot more space inside) and huge, entire side-opening doors for each person, along with 2 full vestibules. If you were afraid of the tent being too tight, or if you were planning on camping with a buddy instead of your significant other, then I'd get the CS3. Tons of room w/o being swimmy, and only another pound more. Seriously, a 4.5# 3-person, free-standing double wall? That's pretty good!

The tent we used on my wifes first ever backpacking trip tapered down to about that (just wide enough for the pads). I was surprised how roomy it was inside.

As a disclosure, I'm 5'8, my wife is 5'5 and we only slept in the tent (well, except for the first night ;^) ).