"I really don't understand what other power users are missing."
With Unity, if I am on a workspace with no terminal, and I click on the terminal to open it, I am warped back to a workspace that already has a terminal open, and I have to open a new window from there, and move it back (with several more clicks) to the workspace I really want to be on. Much different than just clicking on the terminal icon, which worked before.
I'd like unity to work out, and if they could get past the awkwardness of task-switching and workspaces, then I'll go back to it. Maybe it would be best to just treat a new workspace as though there are no applications open at all, and if you want an application on another workspace you have to switch to that workspace first.
Also, it would be nice if I had a way to go directly to, say, the third instance of the terminal that I have open, rather than trying to choose it from a picture.