Very funny show.. but it's a very funny family show. So there's a nice little moment/message at the end of each episode. That isn't a bad thing necessarily, but just pointing it out.
It's one of the funniest shows out, but I still have Community, Parks and Rec, Archer, Louie, Always Sunny in Philadelphia and a couple others I'm sure I'm forgetting above it. If you haven't seen any of the shows I just mentioned I'd check those out over Modern Family first. It's a good show, but the others are just funnier.