The action follows a perfect pace, very easy to follow, the art is good and the animation is appropriate to the pace and environment of the whole series. The story setting is also very interesting, since stories during the 30s and the American recession are not common. However, some details ruin what could be a perfect piece.
The first thing is that whoever commanded that plot tried to confuse us, the viewers, by mixing temporal states randomly. In a scene we are at the 30s the following we are pilgrims sailing to the Land of Freedom and Fortune. This would be ok if they did not give us that information. Saying "now we're going to the 30s" before the scene was not a good trick. It is easy to get used to the pace this way and by the middle of the series I already had the notion of the relationship between characters.
The second motif of my disapproval are the characters. From the little girl that is doing the investigation (and no more information is given about her, which I found amazing. In a bad way, but still amazing) to the random criminals at the train, that simply do not add or take anything from the story or plot. Some of them seem to be there just to fill space, others were extremelly interesting but nothing but the strictly necessary while the most idiot characters were explored to an extreme that turned them boring.
As third and final detail is the humour. Easy, fast paced, silly. Everything a comic relief appreciator does not appreciate. Fairly good moments of humour were interrupted by random moe screaming or were continued to exhaustion.
Even though this anime flaws on three very important details, they do not ruin the enjoyment of the series due to its pace. The characterization of the scenery and overall environment is also good (fails sometimes due to some very "japanesque" actions and the whole language setting) and even such an incredible story as immortal mafia seems possible along the way. The great victory of Bacanno! is, without any doubt, the pace supported by the animation and music.
Overall, a great anime that is nearly impossible to dislike. I highly recommend it, just because it's such an easy, amusing and fun thing to watch.
