Thanks for the positive review!
The "folder behavior" issue you mention can be handled by the DMS structure, and it only remains for me to find some time to implement a nice and clean behavior. To be more precise, there is support for multiple folders to be displayed at once, but I haven't had the time till now to code it.
When the left pane runs out of space, lines wrap. That's not good either, and will be fixed. Someday. <sigh>....
As for the "promotion" of a user's folder, I don't think this would be much of an improvement. It isn't hard to reason that your personal folder is found under "User folders", you don't even see folders you don't have access into, and it probably isn't worth the trouble to "break" the system to accomodate this change.
Jon