We use it in a very busy galley/kitchen, and it has made a huge difference to all of our days, Chef and Stewardesses both. Highly recommend, we no longer have to suffer thru aching throbbing legs at the end of the day.
I bought this product to give me some relief from feet aches from standing at a tall desk, but it does very little for that. I think most people would get more benefit from a cheap drugstore shoe insert.The product looks and feels quite cheap. It seems to just be extruded 'PVC sponge', and the two ends on the sides seem to be mechanically cut, not "4 sides beveled and sealed". If you stand on it for more than a minute, you can see indentations where your shoes/feet were, and they take quite a while to disap..
This mat works good for me. I ordered it to put by my kitchen sink. I have two bad arthritic knees, and its much better than just a rug mat. Very cushiony and nice.