I have purchased quite a few of these chair mats. They do the job but I am disappointed that they have to be replaced every 2 years. They crack and begin to deteriorate after 12-18 months of use and need to be replaced every 24 months or so.
Can hardly support any weight. Chair casters get stuck in one position because the mat warps. I highly recommend a chair mat with at least 0.08" thickness to support a chair.
This chair mat is working out well so far. It was delivered flat (not rolled) and the decals peeled off easily so I was able to start using it right away. I can't really tell which side is intended to face the floor and I wouldn't call either side "tacky" (to prevent slipping) but the mat doesn't move around unless you get off the chair and mat and try to move it with your foot. It's a good value presuming it holds up as I expect it to.