I was an Apple user a long time ago, then I was in the Windows world for a long time, and now I have both. Purchased MBP in December. Came with Tiger and upgrade disk for Leopard, and now I am running 10.5.1. The biggest issue I have is the keyboard seems to go to sleep sometimes and it misses the first letter of what I key after it does. I have not seen the dead keyboard problem that some people reported prior to the 10.5.1 patch, but this "misses the first letter" thing is a big PITA. My other major complaint is the lack of a reasonable docking station option. If Apple doesn't want to offer one, fine, but omitting a docking port on the bottom leads to ridiculous products like the Brazil-inspired contraption from BookEndz. Ugh. Overall, I don't see much difference between the MBP and PC laptops I've used. There are some nice features in OS X, but there are a bunch of things I don't like, too. With the keyboard problem I'm starting to wonder if I will ever build any affection for the MBP. I would be really unhappy if I had paid for it myself.