I very much hate to see her go.
I can't say I know that much about her domestic policies, but from a distance, she seemed to have conducted herself with class and respectability. Nothing bad that I recall (except for only slowly decriminalizing cannabis and not allowing Germans to grow it.).
She badly stumbled with the EU in a way that makes me wonder if she was not accepting a greater role for Germany as a world leader. I wonder if she felt that we would get back up and do that so Germany declined the moment? If so that was a smart decision. If not then she failed with EU leadership.