This is the third mat that I have bought at Staples . They last a very long time are easy to clean and allow the chair to role easily. I recommend it highly. I give it five stars.
On a basement carpet without much padding this mat is a bit more soft than I'd expect or prefer. Chair wheels make small divers which are easy enough to roll out of buy enough that it holds your chair in that position until you push your way out. This isn't uncommon with these cheaper mats but disappointinh none the less. On the plus side there is no cracking yet (1 week in)
I’ve had this about 2 1/2 months and it has already cracked in 3 places. Has divots where the wheels of my chair sit so my chair no longer rolls along the top.