it syncs the entire playlist the changed file is in instead of just the changed file itself, hopefully they fix this soon, it gets annoying If I make a single cue point change on a track I may have in 2-3 playlists and it then has to sync 1000 tracks in 3 playlists for 1 tracks change
this means ONLY cue points created on the computer will be synced to the external device. If you are playing on the CDJ and create a cue it CANNOT be synced back to RB on the computer
see answer to #2
Yes, the feature is awesome, but still needs a lot of work in my opinion. 2 examples are on mac, you cannot see the progress count like 2/2000 syncing when its synchronizing and also I hate that cue points can only be saved one way being I set some in RB when I prep and I also set some live as I drop some new tracks.