One minor thing I noticed - when you copy "Last Played" or "Date Added" to clipboard and then paste them to files, the pasted version does not respect local time (i.e., if I copy tags from file that was last played at 10PM local time, it will paste as what I'm assuming is GMT into the file - 6 hours offset). Not a big deal, but unexpected.
Still seeing "SYNTAX ERROR!" when trying to "blank out" (erase the value of by replacing with empty values) Last Played and Play Count as reported earlier. Not sure how to "properly" handle these. It worked in earlier versions to just put nothing in the replace with field.