This mat is absolutely perfect for my office. It makes a huge difference when sitting on carpet. There are no chemical odors and the mat did straighten out in a couple of days.
It covers the area where my desk chair stands it covers the carpet there. That saves the carpet from the chairs wheels and covers the carpet from spilled drinks.
It was delivered as it is not rolled up. Delivery man leaned it up against our house so had to put it in the garage with a few boxes on it to flatten out any warp. REALLY wish they would NOT place those huge stickers on the mat! They do not peel off easily leaving stuck label pieces.
The mat itself is great. Unfortunately when I received it there was a HUGE sticker on it and when I took it off it left a very sticky mess on the end of the mat that I keep stepping on. If there has to be a sticker on the mat it should be on the BOTTOM where it doesn't matter.