Stupidproof And Failsafe!!
Bought two of these to replace my old Therm-a-Rest GuideLite pad after I found a slice in it during a Jan. '0-Dark-Hundred' Winter campout at Approx -15*C. I repaired the slice with their repair kit yet the pad still had a slow leak.
If the event happened in the Summer I would have just had a lumpy, semi-sleepless night. But in Winter the pad is REQUIRED when lying on the ground so that the ground doesn't suck the body heat from you and endangering you. Where, in the Summertime, it's just a comfort measure for the most part.
The experience/lesson was very well learned for me: I will never have an inflatable pad in the Winter back country again. My trusty inflatable pad kept me comfy year-round for ten years; until it sprung a leak; in the dead of Winter no-less.
What's interesting is the similarities with the two pads: weight is about the same (680g); R-value is real close (3.1/3.4). BUT; the crucial difference: one needs to be inflated and one doesn't.