The appearance of the girl from NCISLA was also pretty gratuitous and unnecessary. Usually there's a real purpose behind crossovers, but there didn't really seem to be one here.
The fight scenes in this one--Joe vs. Wo Fat, Steve vs. the fighter he thought was the killer--were pretty good. I totally had the killer picked out from the get-go, though, but that was in part because he was played by a recognizable guest star.
CBS now just has to give NCIS a reason to mix with say Marine Staff Sergeant and Major
Mac on CSI:NY and they can have a great CBS Universe. They can even bring back old JAG characters.
The recognizable guest star is getting harder to use. It seems like Miami Vice in the old days H5-0 is the show to be seen on. Or the producers are just offering a trip to Hawaii to get a cameo out of the Peter Fonda's of the world.