I bought Jaikoz with the hope of having a on-in-all program for tagging & renaming music. Unfortunately, the software turned out to be quite a disappointment. Starting wih the least important complaints, it's ulgy and painfully slow. But first and foremost:

the musicbrainz query often does not work at all.

What I mean by this is that many CDs are being perfectly recognized & tagged by iTunes within seconds while at the same time Jaikoz nearly hangs the computer for 2 minutes and comes out with nothing. And if it even does from time to time, the tracks from a single album are being treated separately and often one ends up in a total tag-hell.