Being a neat-nick, I wanted a cover for my new Aluminum extended kb. I've used another high-quality brand cover on my older kb's and am quite satisfied with that style, BUT their cover for the AL kb is noticeably thicker than the Moshi, and with the AL chicklet design, presents a bit of issue.

The Moshi fits over every key perfectly, no watermarking (that compression-lift off the keys after you type) over the keys, and honestly, I almost don't know a cover is on the board, especially looking at the keyboard edges. Tactic feel is great, and it doesn't slide or lift, even in the corners.

Well worth the investment, in my opinion.