Executive Summary:I can highly recommend this mat.Reasoning and Justification:I was so sure that a glass top on my fabulous cherry office desk would be great. Shows off the wood underneath, with full protection.But... It's also a 'working' desk, from which I get to run my little retirement consulting biz, keeping the lights on, literally. Early clues to a few downsides showed up quickly. The glass shows every smudge, fingerprint, dust particle, crumb. Drop a small part on the glass and it bounces and then disappears.More critically for function, even an expensive computer mouse that claims to work on glass only sort-of does so. I started with a smaller keyboard-and-mouse size mat, but that quickly proved to be not enough for all the 'stuff' that gets used on the regular working part of the desktop.This 2'x5' black mat saves the day. It has a somewhat textured cloth-feel backing that stays firmly in place. It's thin, and the top face offers a very fine leather-like graining that looks great. It's very easy to clean with just a damp cloth, and, perhaps a little ironically, a little bit of glass cleaner if it's more than just dusty.The smaller mat I tried has an interesting molded-in stitching detail around the edge, something the larger one doesn't. I happily give up that detail for the ability to easily trim this larger mat to exactly the size I want. A straight-edge and razor knife easily handle that duty, on the chance that your workspace protection needs are slightly smaller. Or maybe you want it to fit around a clamp-on monitor mount, or give access to a cable pass-through or built-in power and services port.Conclusion: No fingerprints or smudges like the glass, easy to clean with a damp towel or maybe glass cleaner, great appearance, protects the glass or whatever desktop you have, fully functional for mouse, firm enough to write on paper on it, easy to custom fit if needed, doesn't slide. A great value for my needs.Even if you don't have an otherwise 'showoff' desktop, this mat is a great option, as it completely hides normal desktop wear and tear, replacing that look with a an attractive and very functional work surface. Bring new functional life and an elegant appearance to perhaps worn or tired work surface!