Unity runs too slow in my machine, and Gnome-shell works very well. I don't like very much Gnome-shell but I'm doing my best effort. But one thing that I can't find is how to select a different windows or pick something from the left dock with the keyboard.
I mean, you hit the Win key, and the Activity panels shows. Then, the most obvious is that with the keyboard I can pick some window, with tab change from Windows to Applications, etc.
But NO, seems that I can press a key to show the Activities screen, but then I have the pick the mouse and click in the place that I want to go.
Recently I went to presentation about accessibility in a Google Developer Day, and the presenter says that if we forget everything that she says, we have just to remember "you have to unplug your mouse and be able to use your application".
Gnome 3 says hundred of times that is the "most accessible desktop", but how they can miss use the system with just the keyboard?