The material is not as thick as my old one so you do see indentations from the wheels of my chair when I sit too long. However it does do the job and stays in place. The only real issue I had was in the way they ship it. The mat is rolled (makes sense easy to ship) but they taped the heck out of it. In addition the shipping label and other label were also on the mat. I had such a difficult time getting the adhesive cleaned off even with Goo Gone. On the bright side it did flatten out nicely.