Purchased this chair mat in February 2013 for the office. GOOD: The size covers most of the area under the desk and back far enough to reach the bookshelf. It doesn't slide around on the carpet. BAD: It quickly develops large semi-permanent indentations when a 185 lbs male is sitting in the chair. These indentations do not disappear quickly and require extra effort to move the chair from spot to spot, which defeats the purpose of the mat. However, it is better than trying to move the chair on the carpet.
Bottom Line No, I would not recommend this to a friend
This one is replacing another mat of the same type. The other one lasted for well over 7 years before needing replacing. I consider that a pretty good product seeing as it is used daily. The only thing I didn't like about it is the fact that it discolored.
Bottom Line Yes, I would recommend this to a friend