I was hesitant when I heard that Burton basically just cast all his regulars in the movie and asked 'em to sing, but it actually works really well, since the amount of close-ups call for a bit more subtlety in terms of emotion than someone who solely works in musical theater might be capable of (IMO).
4 1/2 stars...I don't rate movies except facetiously, but yeah, I can agree with that rating. My only problem was that I wish the movie had gone on for a bit longer, but the pacing is really good so over-lengthening it might've ruined the flow.