Little to no value over editing the same information in iTunes
I was a sucker and paid $6 for an app that lets me edit ID3 data for songs in my iTunes catalog. Just as iTunes does. I assumed it would allow searching for songs with missing tags. It doesn’t. I assumed it would try to fill in missing data automatically if requested. With the exception of album covers, it doesn’t. It does nothing you can’t do better with iTunes.
UUCP about
Music Tag Editor