Bought this to replace a high-pile (3/4") mat which cracked and disintegrated after almost 3 years. This one is larger in area (which I didn't need) and thicker. Of course chair wheels dent it but less than thinner products. There's no way to tell yet how long it will last. Previous product had a roughened surface for traction but this one is almost completely smooth on top with only slight pebbling. This makes for treacherous footing in stocking feet.
I wish it had been[...] "unrolled". I ended up with a pretty bad bruise on my leg trying to unroll it. Otherwise I am very satisfied with the product. It does dimple a bit but not enough to make it difficult to roll the chair.