I like this rug a lot, however, the entire length of one side does not lay flat. It crinkles the whole way down so much so that I trip every time I walk passed it. I have tried laying heavy books on it and I finally put a mattress on it for a couple days but a few hours after taking it off, the rug starts lifting up again. I took measuring tape to it and it seems like one end is longer than the opposite end.