I had searched for several days for a gray & white rug for our newly painted living room/great room.  I was pleasantly surprised when I opened the packaging and laid out the rug.  The corners were a bit curled and the rug itself just needed to relax.  I had read reviews and some people had issues, but I laid a queen-sized top sheet over the rug so my 2 Goldens could lie down.  Before I put down the sheet, I bent back the corners and they pretty-much stayed down. I left the sheet on overnight and when I removed it in the morning, the rug was flat everywhere and has been a pleasant addition to our home.