Sinners.
I don't know what scale to judge this one on.
Is it "97% Rotten Tomatoes" good?  Probably not, if for genre alone.  It's a little long, and let's be honest, the plot is thin (although there's obviously some symbolism at play).
But, it's well-acted, slickly directed, has some good music and dance, and has that period throwback appeal.  And, as far as the genre, it's most intelligent than most.  It's a very good watch, even if it could be cut down by 20 minutes.