I really love this chair mat. I just hope it lasts much longer than the plastic ones I've bought in the past and that is the reason I spent a few more bucks on it. The only thing is that it does slide a bit and the little stick-ems that come with it for the edges don't seem to help much. If the R&D team can figure out a way to solve that problem, I'd be willing to pay a bit more for one.  Otherwise, unless there's some unexpected manufacturer's defect that creeps up,  I expect it to last me quite a few years.  I also must express my total satisfaction with the care and attention applied toward packaging the product. I was very impressed.  Good job!