First i thank you for your wonderful application
If i may suggest few improvement to you
1.Prior file versions would be very nice (versioning)...
2.Realtime sync ie when file is changed sync it!!! if this is possible i can finally remove dropbox
3.if Realtime sync is not possible integrated Scheduling not relying on Windows schedule maybe it is already possible with scripts...
4.Port to linux would be nice but it seems that Wine version is working at least for me
5.Locked files syncing