I have been looking forward to this new version and the changes to the window and door tools, hoping it would solve my window editing problem. But now not only is it still doing it (it was only an issue in in one of the edit windows previously), now I can't change anything as causes SketchUp hang. So I've just resorted to deleting the window and redoing it every time there is a change. Time consuming and tedious!
I have found it all to be a bit laggy. When I start moving windows, editing walls, it takes quite a while for the system to catch back up. I don't think this is the computer not keeping up.
We haven't solved this yet, but maybe there's always hope...