Went to Apple store in 2011, tried the aluminum computers, and I remember thinking, this is going to cut into my wrists, and it's one of the reasons I ended up buying a white macbook. After reading post after post of people saying the edge gets painful for them, I am so thankful I went with the white unibody, as I would not want to have that problem. It's now about two years later. My white macbook has not given my a single problem in all this time, not a single one. Best laptop I've ever owned hands down.