Namely why I stopped using an iPhone long ago, damn these bastards for making such good computers though...
My 2010 Macbook Pro heats up and has fan going off crazy, and my 2008 ThinkPad T400 is sitting next to the MBP, just chugging away like a champ.
If you are talking about user interface, I agree on that. But hardware wise, I am not that impressed. However, if you do run into hardware issues, AppleCare is excellent.