Comment on MusicBrainz Picard

Musicbrainz is a great database but why oh why is the Picard interface so horrible? While the layout itself looks clean on a first look its usage patterns relate to nothing the average (or any) user is used to, and i found no situation where its usability comes even close to what is tried and true, plus it's slow. Fail.
Best served as a tech demo (and its been in this state for years).