First of all, it's only fair for me to admit that I haven't seen a great deal of this series. Most likely I'll watch more of it, then come back and edit this review if I change my mind about anything. But I feel like I've seen enough to understand it.
What I like about this show is its quality of animation. It has a consistent style, and that style is a very successful adaptation from comic strip to animation. The characters are well-defined, the themes recognizable. Also, a lot of the humor has the kind of successful punchline-in-the-face edginess that you find in, for example, Family Guy.
What I don't care about in this show is its political propaganda (or is it political...anti-propaganda??) It makes a lot of dramatic suggestions about racism and, in particular, white males...but most of these are obviously exaggerated and meant to be funny, and some of the claims do have foundation in reality. I don't really like or dislike this political aspect to the show...frankly, I just take it all with a grain of salt and wait for the next scene.
What I don't like about the show is that it tries to pose as something it's not. Lately The Boondocks seems to have gotten the impression that it is an anime. The result: We see Huey engaged in a genuine samurai duel straight out of Samurai Champloo, or the two boys trapped in what seems to be the opening gunfight scene from Cowboy Bebop: The Movie. You'd think these scenes were meant to be sarcastic, but they are animated very seriously, almost as if the show's animators are saying, "Hey, Shinichirô Watanabe! See, I can do it, too! Looks pretty cool, huh?"
I think all that is reason enough for a straight-up-the-middle score. But I also admit that I'm interested to watch more of the show and see if I'm wrong about any of the negative points I made...or the positive ones.