I find it frustrating when working in a model that the current workset is set by the first person who opens the model. So when I open the model, it opens on whatever workset that person has chosen and I invariably forget to check it and draw a bunch of stuff on the wrong workset. This setting should not be global; it should be user-based so my preference for which workset is open should be saved and open on the same workset all the time, unless I change it.
Similarly the Project Browser, which, in our models has literally hundreds of views/ sheets/etc., there are dozens of "+" tabs expanded, so I have to close them all or scroll forever to get to the view(s) or sheet(s) I need. The Project Browser should always open with all the tabs closed / not expanded, so I can choose which tabs I want expanded.