One sentence summary:
1. The music, acting and grisliness make it a remarkably effective movie adaptation (insert barber pun here).
2. Goes right for the jugular, and leaves you both gleaming and scarred when it's through with you.
3. A cut above the rest.
4. If we are very lucky, Depp and Burton will continue to make movies like this for decades to come.
5. Rarely do gore and high-class musicals go together; this is one of those times.