I've had more Macs recently than hot dinners. I don't like them.
Software......................
Firstly, the menu bar is awful. Even the shortcut to find stuff is nigh on useless (Squashed-bug + slash). You have to know what you are looking for and the terminology is terribly inconsistent between applications. There are no access keys to navigate around either. If the mouse is easier to use then it's a shit menu.
Also Apple's compiler toolchain is a POS and varies so reliably between releases.
XCode is buggy as hell and the multi window UI sucks (although I hear this is being fixed now).
I could go on but I really want to get onto...
Hardware......................
With regards to my hardware usage, I've had 8 Macs now and three extremely bad experiences:
a) Mac mini failed in 2006 after owning it for 2 weeks. Took Apple 2 weeks to sort it out after denying there was anything wrong with a 100% dead box. I had to threaten to throw the fucking thing at the idiots in the apple store before they'd even think about replacing it.
b) 20" polycarb intel iMac. Crashed regularly with 10.4 on it. After 2 months of arguing with Apple, they replaced the logic board and it was fine for about 6 months then the display failed. Claimed it on the insurance then.
c) 2010 MacBook Pro. Absolutely dangerously retarded stupid design. Can't remove the battery. This is just dangerous. My daughter spilled water on the table (just enough to touch the side of the unit). Due to capillary action, the seam around the base of the machine sucked up all the water. On most machines, you yank the battery quickly if that happens to protect the electronics. You can't on a MacBook. Turned it over and all the liquid that had been sucked inside rained onto the logic board and shorted a few things including the battery. Whilst trying to find some damn mini screwdrivers to get the back off, it CAUGHT FIRE and was promptly chucked in the garden before it burned my house down. It burned for 10 minutes before the LiPoly cells calmed down. The inside of the machine was black and burned, the keyboard had melted and the screen had cracked due to the temperature.
As a qualified electronics engineer, I can assure you that's just a shit and dangrous design. Isolating power is a fairly fundamental aspect of electronic design.
This is why I hate Apple. Bad, dangerous products with shiny happy marketing.