My first encounter of this was the stupid filesystem abstraction iPhoto decided to enforce upon me. After removing iPhoto, it was bearable. This slowly cranked on until I ended up with basically OS-X as a window manager for a terminal emulator, browser, ViewNX and Apple Mail connected to GMail (which didn't work properly either and ended up just being done in a browser). As iWork was shit and corrupted documents left right and centre, I had to use Parallels with Windows Vista + Office 2007 as well. Granted I could have used Office for Mac but it was the 2004 version which was a POS that relied on Rosetta.
As for the iPhone, ugh that was hell. Nothing worked properly and each iOS release was literally scary. My pregnant wife actually begged me not to upgrade my iPhone in case it knackered the battery more and she got left without being able to communicate with me (I'm dead serious there). I actually bought a shit Nokia with a GiffGaff SIM in it to carry around in case the iPhone died.