i'm very happy with the mat and the price i paid for it. i had the mat delivered. the mat was folded (circular) with tape around it times three. the glue from the tape is still on the top of the mat. i wish i could have had the option of picking it up from my local store.
I gave it a one star because it is easy to clean. Other than that for me it slides. I have thin carpet. Not the super thin carpet you see in movie theaters or business establishments but basic thin cheap carpet for the house. Having said that the mat moves and its hard to "roll" in. I find myself using my desk to push back and making the scooting movements that you make when your trying to get closer to a table in a regular chair. All the other reviewers mentioned being able to roll around but for me its no dice. What happens is that the rollers indent themselves into the mat causing it to cave inwards and settle in the spot. Unless your 90lbs this wont effect you but an average person just sitting for 5 minutes and you will have anchored yourself in that spot. I think this mat is best for hard surfaces that do not give way to weight of any kind. I think if I threw some thick cardboard underneath it I would get the hardwood effect and then maybe Ill roll.