This is sort of more of a rant-- type thing, but it can be taken as a review I suppose too. Two years ago, I got my first Macbook (Blackbook). After the first year, the state of the keyboard/trackpad really bothered me. They both had become very polished from frequent use. So I went to the Apple store and got myself a black iSkin keyboard cover and some trackpad/mouse button sticker covers. This was one of the best investments I had made toward that system. The keyboard cover made the thing look like new and was great after I broke it in a bit. The trackpad/mouse button stickers were great too because unlike the stock plastic, they did not become polished from exposure to hand oils. The Macbook looked virtually new. When I purchase my Aluminum Macbook in October, I made sure to get the keyboard cover right along with the computer. However, the Apple store did not have the iSkin products instock but instead zCover products. I bought one, and while it has done one thing for me (keep the hair from 4 dogs out of my keyboard) it has failed largely in one aspect. The first major problem is that is doesn't fit as precisely as the iSkin. The zCover is noticeably skewed, the cover bows over the spacebar and has an extra 2mm cut out for the F keys. Sometimes the misfit makes typing spaces rather difficult. Then, removing my cover today at work under well-lit conditions I expected to see a perfect pristine keyboard as it has never been typed on directly. Instead I was greeted with a very blotchy looking keyboard. Needless to say I am very disappointed. I have no idea what quality of the cover has done this, but I won't let it go on any longer! I tried cleaning the keyboard with cleaner wipes and a moist cloth to no avail. Any suggestions? Another complaint is that the iSkin made my keystrokes noticeably quieter while the zCover has made them increasingly louder. I have placed an order on iSkin's site for a transparent cover for my keyboard and I can't wait to get it. All I can say is do not get a cover from zCover. While I do not know if iSkin has this same effect (as I only ever used one on a pre-worn keyboard), I can say that it doesn't matter too much seeing as the keyboard still looks perfect with the cover on and it will always have a cover on. Moral of the story. BUY iSkin, NOT zCover! Any stories of anyone's experiences with either cover would be good to hear!