The only things I can praise about Baccano are the art and music. Both above average. All the rest is pretty bad. Being well-written does not make it good. The first half of the show is confusing. I started understanding what it was about at half of the episodes.
Characters: There are a lot of them and none are remarkable. At the end of the show I only knew the name of two of them, Isaac and Miria. Guess why? Well, they are the "stupid couple". They keep repeating each other's name throughout the show.
I feel like this story could be way better if the humor was good. I guess Isaac and Miria were supposed to be funny, but they are so stupid that it feels forced.
Conclusion: If you do not like the first episodes, do not bother finishing the show. Enjoyment 2/10. Overall 3/10.