Story (5/10) I don't like the way that Nai and Gareki were just at the same place at the same time, but I don't disapprove of it either. They make for a cute weak-strong combo. ( ^_^ ) The story and plot is not really that original. Organizations, weird mutant beings, good versus bad yada yada yada. But there is a nice enough story here. It revolves around friendships and learning to trust people despite everything else.
Art (10/10) Besides the carnival theme, it is also one of the things that lured me in. I mean, look at that gorgeous art. Some people complain about the art being too colorful and bright but I personally liked the colors. It shows you exactly what's there. A not-so-serious anime, though it has its tear-jerking moments. Nuff said.
Character (6/10) The characters are pretty to look at, and you'll grow somewhat attached to them. But they don't have deep personalities or something. They're don't stand out when it comes to personalities. Nai is cute and all. I love Gareki and Yogi because they are voiced by my two favorite voice actors Hiroshi and Miyano. They give you a warm feeling when you see them opening their hearts up to each other, but that's about it.
Enjoyment (9/10) I enjoyed it mostly because of the art and it truly has its awesome moments. You'll see if you watch.
Overall (8/10) I'd recommend this to anyone who wants to take a break from all the serious and dark anime that is so popular right now. It can make you smile in spite of yourself. Especially those three characters Yogi, Nai and Gareki. :)
