Well, this series seemed rather kiddy from the start. Their wars were "family friendly," the characters were all rather... fluffy and family friendly, and things like that. The story was pretty cliched and not all that well exucuted. It had its moments, but when there are multiple filler episodes in a single short season, the pacing is obviously wrong. The characters were almost too nice to one another, making it less believable. The animation was, for parts of the series stunning... which is what makes the few episodes where it seemed like they gave up all the more striking. Episdes where most of the scenes were CGI still had HORRIBLE animation, making it almost unbarable. The seiyuus weree almost all well known and were used well, making it probably the only redeeming factor of this show. They had two of the best singer-seiyuus in the staff (Nana Mizuki and Horie Yui), and they did a good job taking advatage of this with inserts and a great OP. The characters were.... so cliched it hurt- for the most part. None of them were really memorable or overly likable. No characters were very well developed, and the most well developed character was probably a secondary character that was the protagonist for a large portion of the series.
Anyways, my wall of text written at midnight is now done, and I'll give you a quick overview for those of you that decided tl;dr- Don't bother with this show. It is not good. It is not worth your time.