I was very surprised when I read these negative reviews as I have 2 that I bought several years ago and I love them. I've not had the problems that some people have had. I've used these over and over...when I have litters a few times a year and mine are still in great shape. The backing on mine is still intact and I even put them in the dryer! I guess maybe it's like with most things today....you find something you love and then they start to cheapen it by finding ways to make it for less, thus the quality goes down. I'm very disappointed because I was planning on buying some more, but now I don't know if I'm going to. The only thing that I've noticed with them is that they pill pretty badly after being washed so many times, but I've found a way to make them look pretty good again. I used to use one of those big battery operated pill-removers, which worked but took a long time. The other day I decided to try a slicker brush....took a lot of muscle power but it worked great! One thing I've learned is not to wash it with light colored bedding that can come off on them such as blankets that pill, because all that ends up on the dark mat, so now I only wash it with dark dog bedding that doesn't pill....works so much better and makes a lot less work! Hope this helps someone!