Such a great addition to our camping gear. I got one of these to use inside of my sleeping bag. We typically go days without showering, so this is a great way to keep my sleeping bag cleaner and in better shape longer than without using a liner.
Not a fan of the color, but it didn't really matter to me (what can I say, I like the aesthetics about things). The zipper was a slight netagive; I found that the liner twisted around a bit when I moved in my sleep, so sometimes it was a bit uncomfortable, but it was also nice being able to unzip it with my bag when camping in warmer temperatures.
I just threw it in the wash when I got home and it dried in the dryer in maybe 10-15 minutes. It packs down to about the size of my Eno single hammock. I can't speak for how much warmness it adds; we were camping when it got down to 50º. But I would recommend this to anyone. Can't beat the price!