I bought this glass Chair Met a few years ago. It was delivered quickly, and packaged very well. Having only used "plastic" versions in the past, I wasn't sure what to expect. I am using this on low-pile, Berber-like carpet, and had it on a laminate floor for a few months. It looks new, absolutely no scratches or any other signs of use. I love how smooth my (not expensive, 5 wheel) chair rolls on it. I've moved 3 times since purchasing, and it has held up perfectly. My only very minor complaint would be that it tends to 'move' a bit. Very small distances, and it takes time, but I'll find that my chair rolls off the nice beveled edge after a few months. I just scootch it back in place. I'd say get the largest glass that will fit in your space, and you may not have this (again, very minor) problem. All-in-all I'd say this is the BEST office floor mat I have ever had the pleasure of sliding my chair wheels over.