The mat arrived filthy dirty and unboxed which for me was difficult to bring in the house because I handicapped. Once in I realized it was covered in dirt. I had to use four Clorox clothes to clean it. I am a heavy person and I didn't realize the mat was weight limited. Would have preferred a thicker sturdier and boxed clean mat. Overall I like the product. Thank you.
On thinner carpet this is probably OK but on the thick carpet in my home office the plastic temporarily deforms and creates divots that my chair constantly falls back into.
We actually got this to go under the desk chair my husband sits in to paint (he's an artist with Parkinson's). The extra large size accomodates his need to move both sideways and forward/back. Strong sturdy. Also the edges curve down into the carpet so they aren't a trip hazard.