Review (4/5): Perfect for camping or staying some place without linens (like a hostel or friend's apartment)
These compress very small - amazingly so. When they are "rehydrated" they plump up into what feels like a thick cotton version of a paper towel. They don't feel as thick as a regular face cloth, but they are much more durable than a paper towel. Definitely good enough in a pinch, but not something you'd probably want to use daily at home.
I do notice an unpleasant smell when I first open and rehydrate these, but rinsing and squeezing dry a couple times seems to get rid of the smell. I've put a few of these capsules in my camping gear, my backpack, and my glovebox - they are handy for al kinds of things from personal hygiene to cleaning up spills or wiping down surfaces.