I just used this liner during a 3 month outdoor leadership course on the west coast of Canada. It was great! It was fairly light weight, kept my sleeping bag clean, helped (quite a bit) to keep out drafts and was very comfortable. The pillow compartment worked quite well to hold my "pillow" (stuff sack with jacket liner inside) in place. I have washed it a few times in the machine (on regular) and it seems to be holding-up well (I only dried it for a few minutes in the dryer, then hung it - it dries quickly). It would be handy to have rectangular and mummy shapes to match sleeping bags, and loops at the corners and the middle to use to tie the liner into a US Army ranger blanket, but all in all this is a nice piece of kit. I liked the bright orange colour because it is easy to find and can double as an emergency panel.