Mediocre. The whole conceptual joke of "Roger being with another family = cheating on a spouse = addiction" wasn't really funny in and of itself, but they kept going on as if it were. It's like that Frasier episode where they act like caviar is cocaine. You gotta have more than just that one joke going on. And Steve was excruciatingly annoying, too.
Still better than Simpsons or Family Guy, though.