I really dug the swingin' casino feel of the 20s in the first portion, then it switched to action and while the earlier feeling took a nosedive, the action that replaced it was decent. It didn't mesh well nor did it have as much of a fun feeling, but decent none the less. Thankfully, that 20s feel eventually returned, going back and forth between it and the angry violence.
The parts that were good were fantastically edited and really fun, but during the action portions, the mood turned bland.