Sadly, it still does not work with 2 monitors. i.e. attaching a projector for a presentation, all your windows get moved to the projector. can be quite a problem if you are in a meeting. in addition external monitor can only be to the right, since the dash is fixed on the left.

If you want to drag something inside an application to the left side, the dash shows up and blocks the left side of the application. no way to move the dash.

Just two major bugs in terms of usability. ignored for a long time.