REMEDIAL  Great app, in my opinion. Only things lacking are the ability to add additional columns for information like bit rate and album artist (not just the plain ole artist field) and the ability to add artwork to files (would be especially great if it could get artwork from amazon.com).

I didn't find that it removed artwork from files during my usage.

I must say that this seems to only mp3 tag editor that I've found that corrects files so that they show up properly (and not in the unknown folder) on my Sansa Clip.

With the additions that I mentioned, one might never need to edit a file in Itunes ever again.  
(Version 0.3)