Aside from House, I've never been interested in any of the characters, mostly because they've been underdeveloped, so I had a hard time caring about a third of "Now What," consisting of the neurosurgeon medical shenanigans and 13's departure to lands unknown.
Cuddy probably had more development than the side characters, but the baby stuff and then Lucas worked against her, so I don't care much about her either. But when it comes to House and Cuddy, there's something a synergy that comes about. Without House, Cuddy is a poor character. With House, she's half decent.
There are several lengthy scenes between them, showing a lot more skin than we're used to, and they strike at the heart of the relationship and the consequences. Once they get together, it's not the end of all problems, and in this sense, House is far more superior to Bones. And by the end of the episode, all the issues still aren't resolved, a much more realistic and gratifying development than the very end of the sixth season finale.
Score 8.4/10