The first 4 or 5 episodes were fine, like 7 or 8 out of 10, but after that the main character start to be really annoying and the story just vanished in the forgettable.
Meh ending, very disappointing.
The Art is fine, I very like this new way of "drawing" where the characters looks really good and the usage of vibrant colours and known places.
The characters were fine, each of them makes some sense on the story, but I will rather prefer a more convincing story than this (you will see from episode 6 and later that is like watch the 4th season of two and a half men).