I saw someone say it's too good to be labelled a sequel to The Godfather, and instead should be seen as a companion piece. I completely agree.

Robert De Niro's performance (both his acting and the whole story of his character) might be the best I've ever seen. He is simply unbelievable.

Al Pacino is a different Michael Corleone from the first movie, but plays him to perfection. However, I do actually prefer that character from the first simply due to the way he changes over the course of it.

Regardless, it is a must-see, and I challenge anyone to find a better performance than De Niro in this.