I can't imagine having a different brand of computer, but there are lots of OSX bugs that cause my teeth to grind. The Finder doesn't remember that I only want one layout ever, and it resets to a random alternative setting regularly. There are still progress bars that pop over, and can't be hidden. The data display which shows used disk space and it is nearly all "other" is a bug as far as I'm concerned. My AppleTV(8) has stopped incrementing itself, but its not ideal. And as a genuine question, has anyone not had strange Xcode behaviour or crashes at least once per day? I currently have a slow motion simulator that changes views over 5-10ish seconds.