I really like these, and far prefer them to disposable liners. I find they are durable and wash well, more so than some other brands of fleece liner. As others have said, they do bunch sometimes, but I'm not sure that's ever to be avoided entirely. Overall, good product that often makes my life easier!
Our house loves all Bummis products. These are nice and thin and we use them with our prefold diapers to keep baby dry.