I decided about when they released the new MacBook Pro model that I was going to switch over, and since then, I've been keeping an eye on the forums here at at notebookreview for whatever problems people are having. I've been stashing the links to them, and I figured that I might as well share that.
Here's a general list of the problems I've seen and links to them. I guess it'd be prudent to check all these things when you get one, and if you have a problem, see what people did about it.
Of course, if you have anything to add, I'll keep an eye and edit.
1. Heat
https://forums.macrumors.com/threads/307191/ Hot MBP
https://forums.macrumors.com/threads/316736/ Thermal Paste discussion
https://forums.macrumors.com/threads/316319/ discussion about smc Fan Control
2. Light-Bleeding
3. Uneven backlighting
4. Dead Pixels
https://forums.macrumors.com/threads/311412/ Pixel poll
https://forums.macrumors.com/threads/316360/ App to test for dead pixels
https://forums.macrumors.com/threads/318508/ Dead Pixels, and Apple policy on it
5. Sleep/Boot up/Shut down
http://discussions.apple.com/thread.jspa?threadID=737415&tstart=0 The BIG thread about it. Your best source about this problem
http://forum.notebookreview.com/showthread.php?t=131723 Various other problems as well
https://forums.macrumors.com/threads/317846/ Randomly booting up
https://forums.macrumors.com/threads/233839/ Doesn't sleep and freezes afterwards
https://forums.macrumors.com/threads/321678/ Problem noted, no responses
https://forums.macrumors.com/threads/319061/ Draining battery while sleeping
6. Warped Lid
http://discussions.apple.com/thread.jspa?threadID=1000986&tstart=0 Problem and some home-brewed solutions
http://forum.notebookreview.com/showthread.php?t=133690 It happened, little other news
7. Yellow tint
https://forums.macrumors.com/threads/315081/
https://forums.macrumors.com/threads/313239/
https://forums.macrumors.com/threads/318198/
https://forums.macrumors.com/threads/318259/
https://forums.macrumors.com/threads/321592/
https://forums.macrumors.com/threads/314130/
8. Static
https://forums.macrumors.com/threads/317489/ static from interference
9. Flickering (mostly at lower brightnesses)
http://discussions.apple.com/thread.jspa?threadID=986781&tstart=0 Massive thread about this
https://forums.macrumors.com/threads/316882/ Just discussion
Surveys
https://forums.macrumors.com/threads/315411/ alright poll, and very favorable
http://forum.notebookreview.com/showthread.php?t=135669 small poll, but useful
https://forums.macrumors.com/threads/314479/ very good poll with details; I think I'm going to update the numbers on it, actually
Hope this helps.
Here's a general list of the problems I've seen and links to them. I guess it'd be prudent to check all these things when you get one, and if you have a problem, see what people did about it.
Of course, if you have anything to add, I'll keep an eye and edit.
1. Heat
https://forums.macrumors.com/threads/307191/ Hot MBP
https://forums.macrumors.com/threads/316736/ Thermal Paste discussion
https://forums.macrumors.com/threads/316319/ discussion about smc Fan Control
2. Light-Bleeding
3. Uneven backlighting
4. Dead Pixels
https://forums.macrumors.com/threads/311412/ Pixel poll
https://forums.macrumors.com/threads/316360/ App to test for dead pixels
https://forums.macrumors.com/threads/318508/ Dead Pixels, and Apple policy on it
5. Sleep/Boot up/Shut down
http://discussions.apple.com/thread.jspa?threadID=737415&tstart=0 The BIG thread about it. Your best source about this problem
http://forum.notebookreview.com/showthread.php?t=131723 Various other problems as well
https://forums.macrumors.com/threads/317846/ Randomly booting up
https://forums.macrumors.com/threads/233839/ Doesn't sleep and freezes afterwards
https://forums.macrumors.com/threads/321678/ Problem noted, no responses
https://forums.macrumors.com/threads/319061/ Draining battery while sleeping
6. Warped Lid
http://discussions.apple.com/thread.jspa?threadID=1000986&tstart=0 Problem and some home-brewed solutions
http://forum.notebookreview.com/showthread.php?t=133690 It happened, little other news
7. Yellow tint
https://forums.macrumors.com/threads/315081/
https://forums.macrumors.com/threads/313239/
https://forums.macrumors.com/threads/318198/
https://forums.macrumors.com/threads/318259/
https://forums.macrumors.com/threads/321592/
https://forums.macrumors.com/threads/314130/
8. Static
https://forums.macrumors.com/threads/317489/ static from interference
9. Flickering (mostly at lower brightnesses)
http://discussions.apple.com/thread.jspa?threadID=986781&tstart=0 Massive thread about this
https://forums.macrumors.com/threads/316882/ Just discussion
Surveys
https://forums.macrumors.com/threads/315411/ alright poll, and very favorable
http://forum.notebookreview.com/showthread.php?t=135669 small poll, but useful
https://forums.macrumors.com/threads/314479/ very good poll with details; I think I'm going to update the numbers on it, actually
Hope this helps.