The mat shifts as a result of moving the chair around. I have only had it a short time and it already has areas that are wore which cause the wheels of the chair to stick in the worn areas/grooves.
We have several of these mats in our office and have to replace them quite frequently especially those that are on carpet. I'd like to see a mat with a longer lifetime since they're not particularly inexpensive. Pros: protests the floor as promised Cons: doesn't last long so we've had to replace multiple times
We ordered 3 Staples low pile carpet chair mats and some Brother labeling tape. I an very pleased with the quality and the free delivery that was on time and very efficient.