Let me just say, this thing is AMAZING!! I love it!! One of my biggest downfalls to doing yoga was that I would have back pain and knee pain when doing poses that involved being on the floor. This is no longer a problem. I am so grateful to have this amazing mat! That being said, the only thing that I could say that's bad about it is that because of how squishy and wonderful it is, it makes it harder to do balancing poses like tree pose for example, but they can still be done as I'm still working on my balancing anyhow and I was able to do them. I have NOT had any problems with it rolling back up at one end on me either as I saw someone else had had an issue with.
Rating: [5 of 5 Stars!]