These have worn well through a few washings. I used them on an airbed so it's hard to say much about the fit...nothing really fits well on an airbed. Overall I was happy with these sheets except for the way hair sticks to the fabric. Even after washing, I would have to pick hairs off the sheets, kind of gross and a hassle. These are the first microfiber sheets I've ever bought and probably wouldn't go for them again because of the "sticky" problem.
I bought two sets of these sheets in June. One of them disintegrated in the wash after three washes and has all these holes in it. I believe it was a manufacturing error, because it was all along these weird rifts and lines that were in my sheets set. They are relatively soft, but nothing like you'd see in good quality sheets. It was equivalent to the *** t-shirt material bedding for college goers. Soft-ish. I definitely would tell people to shy away from this one!
I was very disappointed in these sheets. I purchased and had delivery to daughter in college. She has a thin mattress and the the bottom fitted sheet still didn't stay on it all night. Elastic is no good. Am in the process of returning and am fearful I will get a hassle as daughter threw packing away.