Got my regular sized Xtherm today from Ultralight Outdoor Gear .
First observation is it is 12g over the specified weight (442g vs stated 430g).
The stuff/pump sack weights 45g. Interestingly the stuff sack is made in China.
The included repair kit is a nice touch, and was seriously lacking from the previous NeoAir models.
Trying to be 'proper' the first time, I tried inflating the mat with the provided pump sack. Blo-dy hell it took ages!
It was my first time using a sack to blow up anything so I might have been horrible inefficient. I will keep experimenting with it.
The first thing I noticed as it was blowing up was how un-crinkly it was. I was worried that it would be really bad, but after lying on it for the past half an hour I can honestly say I hardly notice it (and that is when I am paying attention to it). I also love the vertical baffles/tubes. My previous mats have never had (noticeable) tubes, so this was my first time lying on them.
Some users noted that the edges collapse when you roll on them. For the past 30 minutes I have been lying on the matt in my sleeping bag, rolling around, and I did not notice it happening. It is worth noting that I am a side sleeper, and although I find the mat narrow - it was certainly adequate. In other words, you don't have oodles of space but you can roll over without going on the ground. The thickness is something I also love. You can localise your weight without touching the ground, which tends to happen to me with other mats. Oh and you can certainly feel the heat radiating back at you, even after a few minutes.
It am looking forward to trying it out in the field soon, after uni exams (bleh!).
Here are some supplementary photos taken with my phone. Sorry for the quality.



