The story suffer a bit having just 12 episodes. More 12 episodes needed to complete development of the characteres. Unfortunataly, predicatble ending at middle of the show. Good plot. The action is little, but is highly convincing. I believe that an adult audience can appreciate it. Children Naruto audience tends to not like so much...There is a little of filosophic thoughts that is appreciable also.

The abilities of characters combine very well with its characters.

SPOILER
What was the fucking monkey plans? It is really irritating do not know.

Some dumb deaths makes people do not like the anime, but in a story that is close to reality, it is something very probable to happen.