It was okay, I guess. Didn't jump up and grab me by the throat, but I'm willing to give it a try for a long list of reasons.
I thought Watson needed to yell at Holmes a lot more, if for no other reason than I wanted Lucy Liu to yell more. It was pretty awesome the one time she did.
Also, who goes to the opera in New York and doesn't go to the Met?
Last but not least, I wish I'd watched (US) Prime Suspect a little harder, but hey, I get Aidan Quinn playing the same character, minus some assholery.