Needs customizable shortcuts
Title says it all. Everything seems to work as stated. However, the lack of customizable shortcuts makes the built-in hotkeys unusable (i.e. "Unmount all removable" is assigned to command+E, which is already used in many applications including Chrome).
EDIT:
Recent updates remove the shortcuts altogether. Also, support for "partitioned" external hard drives used as Time Machines is incomplete. Ejecting a Time Machine causes it to eject in the finder. Unplugging the hard drive after using Mountain to eject, however, causes an improper ejection dialog to pop up.
Versace G about
Mountain