I like this more than the Seth Macfarlene shows.
It's more character driven. I feel people when it comes to animated sitcoms are too reliant on gags and shock humor to keep them entertained. I mean I adore Family Guy but the Griffin's just aren't as colorful and joyful as the Belcher's nor are they as tight a family tbh. Also it seems like all the Belcher's are equally important to the show while in Family Guy Chris and Meg feel pushed aside most of the time. American Dad pushes Klause to the side even though he's the most likable character on the show.
Basically I'm saying animated sitcoms should focus more on characters and their relationship than gags and shock humor. That said South Park is still no 1 :D