Dunno about the Pro.
I have 2007 Macbook (white plastic). Here's my list of things that went wrong.
After a year the hard drive died (literally within a month after the warranty expired). Apparently they recalled my macbook this year for dieing hard drives (a little too late for me *grr*). Well not sure a recall but said they'd replace hard drives or something. I just remember griping that will they reimburse me for the one I bought a few years ago to replace my dieing ones (no, I don't expect they would... I'm just annoyed that *now* they admit there were issues. I mean I know it's a hard drive but honestly, a year?! That's ridiculously short even for a hard drive imo).
A little after a year the plastic where your hands cracked and eventually chipped off (not a usability issue but annoying on such an expensive laptop). Some time the plastic on the back near one vent also cracked (I just recently noticed that though after reading it wasn't just the palm rest that tended to crack on the laptop so I decided to see if mine actually cracked elsewhere). This also is a known problem with my model and I've been told (after I already replaced it myself) that if I had brought it to the apple store within it being three years they would have replaced it.
Had to fix the plug (The little plug you slip on the power adaptor, it fell apart, we had to glue it back together cause I didn't want to pay 70 bux for a new adaptor over one little part that they don't sell seperately).
The fan started dieing recently (I replaced it. My laptop, not being a unibody, is pretty easy to work on).
The mouse button started getting worn out or something so that it easily got clicked. Sometimes I have to open my macbook just a little bit when using it as a desktop or it acts as if some one is holding down the mouse button.. When I replaced the keyboard (when I fixed the fan) the new one was even worse. Or something was bad. I have noticed just resting my palms on the palm rest will cause it to think some one is holding the mouse button down. Might just disconnect the track pad at this point (I have a magic mouse, it's not like I use the trackpad as the mouse travels easily with the computer).
But, I have to say unlike other people, it's still running on the original battery (which has 93% life left in it). And I usually keep it plugged in which I hear is not good for it. But, the battery is really easy to replace as it was still a model that had a removable battery.
Overall, not really impressed with quality (I do think the design is very thoughtful on use and ergonomics of a laptop like size, the magnetic power plug, the magnetic closing rather than a button that the few PCs I've used I notice get kinda finicky). But, keep in mind, this is my first laptop, so no idea how it compares to other laptops, mac or PC.