I'm kind of curious about how easy it is to backup and migrate to the regular version is, there seems to be something like the normal appdata folder located in
%LOCALAPPDATA%\Packages\50072StevenMayall.MusicBee_kcr266et74avj\LocalCache\Roaming\MusicBee, wonder if that would work for migration using
this method.
I'm not having any problems with the windows store version currently but I'm kinda worried I might need this some day..
EDIT: I did the backup thing as described here and it seems to have worked fine:
http://musicbee.wikia.com/wiki/Backup_%26_Restore#Backup_LibraryIf you don't do this backup then all settings will be gone it seems.
Left the music and the musicbee folder in the music folder where it was, uninstalled store version of musicbee, downloaded the regular thing, started it, closed it and copied the contents of the backup folder to \AppData\Roaming\MusicBee and it worked.