This chair is a very nice chair I've had relative enjoyment of it in the week I have used it but it pitches forward and does not roll that easily on my thick plastic mat. I use my office chair up to 10 hours per day probably more like eight hours sum total out of 10 and it holds up okay except I am finding already that the seat after just one week is beginning to get a little harder than it was when I first sat down in it and I'm not a big man. Probably should have gone with a Lazy boy. I'll be returning this product and taking a look at Lazy Boy. Because I know those chairs will hold up and I know which one I want.