I loved it all but the abrupt ending
After he kills Danny Demarco I was expecting him to have rescue one of his girls from some hitman that Dannys father would send to find his sons killer... after all Millicent told us that he's an heir and his Daddy loves him. I was expecting that bit of information to payoff somewhere in the third act.
I dont think that killing Danny or accepting the ticket to Corsica was the big " dig down deep " moment that I was looking to see from Nick. I guess it seemed like the old Nick never died so that the new nick to fly off and leave Vegas.