There are serious problems in Unity.
I rather dislike things like having to open an application before I can permanently put a shortcut for it in the dock/bar/whatever-the-hell it's called this week, some applications that for some reason will not persist there no matter how many times I try to place it there permanently, windows that randomly decide to change size and shape because they decide that a mouse movement with no button-click means I'm trying to resize, toolbars/docks/whatevers that sometimes insist on unhiding behind an application instead of in front of it, and scads of other problems that I ran into while using Unity (due to command from on high; I sure didn't choose it for myself).
