Using this in a home office on low pile carpet but with a thick pad so there is lots of give underneath. The last one I got fell apart after 18 months heavy use. This one is clearly much higher quality and I don't think I'll need to use the life time guarantee it comes with. (Still nice to know it's there.)
The mat is just as the name describes "economical". This mat should not be used on carpet unless the carpet is a very low pile like an indoor-outdoor carpet.