There isn't much to say about the Marware Protection Pack Plus. It does its job well. Despite the warning, I put the black model on my white Macbook. There are three pieces: a keyboard cover, a hand rest, and a protective sleeve. The consistent themes for this product are: soft, microfiber, protection, easy, etc. The keyboard cover has two purposes: protect the screen from long-term damage from the keyboard (this happens on portables quite often -- eventually you can see slight indentations), and clean the display.

I get annoyed by smudges and fingerprints so this makes me happy. The hand rest is perfect for discoloration prevention which I've seen a few times on white Macbooks. You can also use the keyboard without worrying about your watch and ID bracelet scratching the enclosure. Applying the hand rest took some patience similar to placing a protective film cover on the iPhone/iPod Touch. No bubbles; no crookedness.

Basically, the US$27 (Amazon.com) investment is worth it if you want to keep your Macbook looking beautiful.