Cleveland show in many ways will be in many ways just like Family Guy. I don't really get, why do we need a spin off. For one- Cleveland is like the most boring character ever in FG. And two- the characters and settings are pretty much the same. Instead of a talking dog, we have a talking bear. Instead of Joe and Peter, we have a gun wielding racist, and a guy who lives with his mom. There is Ralo who seems to be like Stewie, Roberta comparable to Meg, and Donna comparable to Lois.
Criticisms aside, the pilot was actually pretty funny. It did have the usual absurd references we see in Family Guy, which is good in a way. I know it will be on air for 2 seasons, however, I think it won't survive an episode after that.