Just as advertised. The size was just right for our small office. Did not experience the curling problem another reviewer had. Only con so far is the label on the mat did not come off easily - leaving a sticky residue behind. The mat looks like cracked glass and while it does allow the floor to show through rather well don't expect it to be crystal clear.
This is very stiff. So it does not stay flat on the floor. Chair rolls too easily on it. Had I seen it before buying I would never have bought it (ordered online without seeing).
I am using this product on top of a low pile carpet and it works well. It is colorless so it is not distracting. It stays securely on the carpet and can be easily wiped. The only "con" was that the tape around the rolled up mat needed to be cleaned off with an all purpose household product (took some elbow grease) but Staples Customer Service said that they are working on this with the manufacturer.