Have been growing (even more) annoyed with Unity on the machine at work.  Just too many times every hour where I have to stop, work around Unity (normally just an extra seek-and-click, but it adds up when you have to wait for the failure, think about why it's failing, then re-acquire a target, then click, then re-acquire the target you were trying to hit), then return to what I was working on with my train of though derailed.  Really doesn't seem ready for power users, particularly those with large multi-monitor setups.

Gave in and told the machine to switch to Kubuntu just before I left the office on Friday.  Tried Unity for far longer than I should have because I wanted to give it a chance to grow on me, but I have work to do, and it isn't offering anything I want in return for the pain.