Exped ultralight down filled air mat

I just picked up this sleep pad. It came recomended from a good source. It is 72"X 20" X 2" thick and weighs 22oz.(R rating of 4.1)the compressibilty is pretty good, as is an air matress and not a pad. The repair kit and cool little pump is included in the package that cost me $100.

Has anyone logged time with this item? How well does it hold up and do I need to take any special care. Unlike a pad it has probably 0 "R" rating if deflated from a hole. I will be sleeping in a floorless shelter with a ground sheet of some kind.
Any suggestions or comments would be appreciated.

Thanks in advance

LaGriz

LaGriz, I have one and thoroughly enjoy it. Granted, I use mine in a tent, but the main thing is to ensure all rocks/sticks/anything that can put a hole in are removed from your shelter site. They do make a durable cover for it, and I have it, but have never used it. I've had mine for 2 years with nothing gone wrong yet (knock on wood). I think, just baby it a little and sleep well! I do.

V/R
Garion33