The product is advertised for use on flat pile carpet. I have a low pile carpet - not flat enough I guess - but certainly nothing that can be described as plush; far from it. The matt quickly developed depressions where the casters on my office chair usually are making it more difficult to roll around than if the matt weren't there. This product should be limited to hardwood linoleum tile or other hard surfaces. Use on carpet only if the carpet is VERY thin.
The mat that this mat replaced didn't show dents in the mat or the floor. I had it over 10 years and it was starting to crack. Guess it was more plastic and durable than this rubber mat. I do think this mat will last a year. I am 5'2" tall and not overweight but this mat has dents in it already. Are you sure you want future reviews from me?