It has this humongous limitation of only allowing me to choose from what it believes to be right. To work in real life, it has to be paired with a tag editor, an organizer, who knows what, and it's neigh-unusable for large lists because of that.

I really like it, but if you have a typo in your song tag, or a bad tag, missing, ambiguous, etc, it's dead.

Too bad. Mighty useful in small quantities. It takes about 3000 times less time to move all data to a PC, re-tag it and put it back, which takes time, effort, and has the distinct disadvantage of pre-selecting songs, pre-ordering them and loses mobility.

Last I checked, it also lacks mass corrections. One can't auto-apply the same art to several songs in the same album. I did check a while ago, though.