This season has been such a disappointment so far, that I wasn't expecting anything except to see the show being canceled very soon. Finally, this episode was worth watching.
Thirteen tries to lie to House about why she was in jail but he's not buying it, he knows there's something deeper than what she's telling. Their conversation at the end was very revealing, yes, despite how hard he tries to deny it, House DOES have feelings for people.
I could have done without the spud gun thing, although it was entertaining and gave a comic relief to the episode. Couldn't care less about Taub's sex life (plus, come on, HOW is this guy supposed to get all these women, he looks like an egg and has the personality of a ... well, an egg too actually). I wish they'd get rid of him instead of whatshername (Amber Tamblyn).
The medical case was moderately interesting because of the hoarding issue.
Best of all, NO CUDDY!
All in all this episode gave me hope that maybe House can get back to what it used to be.