@Braelvenae Glad you like it!
When you get one of those crashes could you pm me the logfile so I can se if there are any clues there?
The log-file is located in your computers AppData folder under elDSoftware (or you can just search for SharpSonic.log).
The ability to save and load playlists is on my to-do for the future as well as getting the UI more responsive when not using the local cache.
Thanks for the feedback!