Like most Equinux products, the interface is artfully produced within the confines of the Apple user-interface guidelines, but functionally it falls flat. In demo mode with a library of around 10,000 tracks, it found about 20 "songs with missing information", but they were very weird finds indeed. It found a single track off an Andrea Parker DJ-Kicks album, with which it 'suggested' that the artist/track title fields should be swapped! Curiously, the other tracks on the same album (rightfully) avoided detection. Then, it found a single M83 track, the title of which is an asterix (*) -- correctly -- but if flagged it as "missing information". Then the $30 nagware kicked in, so I stiffed it. It's an interesting idea, but not $30 interesting.