It completely ignores the simple UI paradigm of tabs or a sidebar. You should be able to move between repos without blowing away whatever you're in the middle of. I'm forced to be in one at all times, and I can't manage multiple repos at once via a simple sidebar. It's like it takes all of the inherent arcane complexity of Git and creates a UI that is so barebones it almost mocks you for deigning to ask for a GUI.