I'm selling my old Mac Powerbook, and bought a new one that has Mac OS X 10.4 (Tiger) preinstalled. The changeover -- migrating my old applications and data to the new machine -- has been nothing but trouble.
I won't go into the details, but aAfter following instructions to the letter I find myself reinstalling for the third time. Who has time for this crap?
Update: I was asked in the comments what went wrong. This: The utility that brings old apps over during the install created system problems -- such as making iChat unusable -- and the after-install migration utility simply failed to work at all. Then, after another clean OS install (and after then manually moving and/or reinstalling apps, Filevault failed when I turned it on for the first time (hung up, forcing hard reboot, damaging Home directory). Ridiculous.
Is it a customer's fault for using third-party software that may or may not be part of the problems? Let's say for the moment that it is (though that's a somewhat bizarre notion if you think about the purpose of a personal computer with an operating system that has programming hooks designed to let third parties create new applications).
If so, Apple needs to change its installation procedures and migration tools. It could tell people to reinstall all applications one by one. Or it could keep a database of software it knows to be compatible with the new OS and tell the migration utilities to refuse to touch anything else. But to provide tools that either break the system or fail to work at all is not very useful.