The strong "chemical" smell nearly cost this product its 5 star rating -- After three days in a well ventilated storeroom it "earned" its way back into my office. A great carpet protector despite my 220 lb body weight.
I am using this product in my personal home office. I only have owned this for 2 weeks. The quality is good for the price. I hope it lasts at least 1-2 years and if so I will buy again.
The mat may prove to be too soft/too thin because depressions are forming where my chair usually is positioned. I've had it only for a week so it's too soon to tell whether it will discolor.