This mat seems to be an adequate replacement for the mat I had. I am a big guy and the wheels of my chair leave indentations in this mat when they didn't on my previous mat thus making sliding a bit of a hassle. Not bad enough to change tho.
I love the fact that Staples puts this size on sale for half price a few times a year! Most discount or large volume warehouses sell them for around [$] or more! You can't beat the price and convenience of this product. But mind the cleats...they can be brutal on the legs and feet when transporting it.;)
Quite a bit thicker and stiffer than the standard chairmats and I expect being stiffer it will flex less and wear better over time. The thin standard thickness mats flex so much that they soon crack in the center and then need to be replaced. This was the thickest mat of this shape and size I could find and well worth the slight additional cost.
I've barely had this a month and already it's curling at the edges and sagging in the middle. I wouldn't buy this again. I should have pried the lock off of my wallet and gone for the more expensive but more durable one.