I am not part of the targeted demographic, but I wish I had this show as a kid. Not only does 'Wallykazam' expand kids' vocabulary, but also puts them in fun situations. The situations are creative, and could influence a kid to engage in higher-level thinking.
My only qualms about the show would be that the animation could be better. The animation is not as fluid as it could be, but that is only a minor setback. The average kid watching couldn't care less about the animation. Content-wise, the show is excellent and the voice-acting is impeccable. This show is adorable, and I would recommend this to children.