I guess when you order cheap you get cheap. My chair still does not roll on this mat. It is actually worst than the carpet was. I need to return for a thicker mat. Not worth the money.
I mainly got this because my office chair kept getting stuck in my carpet which didn’t used to be a problem until I was sitting in it far more often for WFH. I was hoping this mat would resolve that issue but the plastic isn’t hard enough to keep the wheels from sinking in. It’s better than it was but I probably needed to get a higher end mat to prevent what is happening now.
As far as the mat functionality it's fine. But it has a tacky surface and no matter what I try I can't get rid of it. It's not from the tape that it was rolled up in it's the entire surface that's tacky. I wear socks when I use it then take the socks off when I walk around the rest of the room so it won't make my floors sticky.