I think it's great that they are not making BoJack "just the douche" character. Backstories help a lot but it's also just about setting up the scene: can people be good in the environment? What are the motivations, challenges, triggers, and obstacles? Who defines happiness?
They are mad people. They make irresponsible decisions. But they are fuckin' real. Plus they are so honest with their body. You both hate and love them so much. What else do you expect? #Best ever#