I liked this quite a lot. I mean, they still need to up the laugh quantity a little bit, but they're still doing a lot better than they have in the years since season 4. The laughs this episode did have were good, solid laughs and not just little "heh, I guess that's a sort of clever reference" chuckles. I laughed at the Black Jesus thing, the British party (even though it went on too long after the laughs were done), Joe's parrot, and of course Quagmire's epic burn, even though I think Brian's reaction left something to be desired.
The thing with the guy beating Quagmire's sister was really venturing into dangerous territory, and I think it could've been handled a little better, but I couldn't help laughing when they were all yelling at Brian from inside the house.