So far this mat is performing well. Our previous mat cracked in several places where chair rollers moved back and forth. This mat seems to be more flexible creating depressions if we sit for a long period of time. It remains to be seen if it will outlast tho old mat.
It's very clear. Dimples a little slides a lot if you move around often and has to be re-positioned on a low nap area rug. Will use some double sided carpet tape to secure. It's nice that the AnchorBar cleats don't poke you but don't really keep mat from sliding.