I really liked the first season, which gave a wide view of the intersection between political machines, the wealthy, mobsters, ethnic communities, WWI veterans,

I really liked the first season, which gave a wide view of the intersection between political machines, the wealthy, mobsters, ethnic communities, WWI veterans, reform groups, etc that made up the prohibition era in a much more interesting way than a lot of treatments of the time, which tend to focus on the mobsters to the exclusion of all else. Sadly after the first season, it pretty quickly degenerated into "all mobsters, all the time" show. Even the FBI guy joined the mob.