In the 7.x toolbar module, I had the menu items (top level only) and the shortcuts visible at the same time.
In the current 8.x toolbar, I have to choose whether I want shortcuts or menu.
To me this is a UI regression, because (a) I can't see both at the same time and (b) it takes me more clicks to get to what I want to get to, if I happen to have the wrong choice visible at the moment.
Also I would wonder whether the average non-developer user would understand the distinction between shortcuts and menu at all? When I create sites for clients, I would want to set up shortcuts and have them always visible for the common admin tasks. If they go away when they click "Menu", it kind of defeats the purpose of having set them up with the shortcuts in the first place.