When I opened the package, my initial reaction was that of concern because of the thinness of these sheets and cases. Regardless, I immediately threw them into the washer and dryer to see if they would pill. They did not pill. So far, so good. I then placed them on the bed and was pleased that they fit so well on a deep mattress. I particularly liked how easy it was to work with them as I adjusted them. In fact, the thinness that I was so concerned about had turned out to be an asset as they were much easier to work with than my thicker cotton sheets. The test would be sleeping on them. They were perfect! I like a smoother-feeling sheet and, in fact, these have a very luxurious and silky feel to them. I am absolutely sold on microfiber and because of my experience with them, and at this price, I cannot afford not to purchase additional sets for the future. I don't know how long they will last ... at at $**, who cares. If they last a year, they are a value. I'm not suggesting that they compare to a $300 set of luxury cotton sheets--that would be silly; however, these sheets are $**, comfortable, and attractive. What's not to like?