Any of you with a home office or work in an office that has a glass chair mat?

Paul and I are looking for one....maybe 40" x 60" for our home office.

We have tried the usual mats......(have tried 2 from Staples and 1 from Amazon) and were unhappy, so returned.
The room has wall to wall very plush carpeting that is in fabulous shape. We are considering ripping out the carpeting and tiling the floor in there.

If you have a glass chair mat, please tell me what type, how large and where you purchased it?

Thanks in advance.