Earlier quoted context omitted.
I've been using OS X for under a year, and I've run into two major problem that, in my opinion, are completely inexcusable. * Trying to save files in Pages/Numbers, I get an error "Cannot save file. File does not exist." (Well of course it doesn't exist, I haven't saved it yet!) Lost several hours of work multiple times because I couldn't save files. And that is a total shit error message. * Trying to move folders on…
My MBP tends to lose connection with my external trackpad after coming back from sleep. In fact, Bluetooth stops responding entirely. The only way to fix it AFAIK is to reboot. (Doesn't that remind you of Windows?) My colleagues have encountered the same issue.
In any case, it's not something that ever affected me.