After nearly 12 months of fighting my rolling chair and the edge of my carpet getting flipped and tangled up I finally bought this item. I've had it about a week and although it seems so simple it really has removed one agitation point about working in my home office. Delivery was faster than expected - win-win.
I agree with the other reviewers - after a week there are already indentations from the chair. Okay for my purposes but if you are going to be at your desk for 8 hrs. a day giving this a lot of wear and tear you probably would want to upgrade to a more sturdy mat.