I haven't had significant problem with OS X. iOS is trickier. For a more concrete criticism of functional software, thoughtfulness of design, and reliability,

I haven't had significant problem with OS X. iOS is trickier. For a more concrete criticism of functional software, thoughtfulness of design, and reliability, though, I submit Apple ID, iTunes, App Store, etc. This has been the buggiest and most opaque set of services I've dealt with recently. I have 3 different accounts now, each connected to developer credentials and app store purchases. 1 original account seems to have turned into 3 by way of failed sign-ins via iTunes and multiple failed password reset attempts. Each of these has 3 or 4 nonsense trivia questions associated with it. I have a folder in KeePass dedicated to managing this stuff. I have a spreadsheet that attempts to map these things to purchases. I can't automatically install updates because App Store downloads have associated themselves with different accounts. I've given up in a way. I have years-old versions of software that I don't update just due to the complexity of signing in. I don't know how people deal with it.