The explorer plug-in works very well for managing a workspace, however, there is no branch support.

1) No way to tell what branch the workspace currently has
2) No way to switch the workspace to a particular branch
3) No way to merge the current branch into another
4) No way to merge another branch into the current one
--there are other branch features available, but these are the ones my team uses the most.

All of these thing currently require the GUI to perform, but could be done using the Explorer plug-in