This one is just as good as the original. I think it is in some ways better because of the dynamic between Brian and Roman. I liked this one a little more because there weren't so many intertwining character story arcs going in this as compared to Fast One.
I think I like this better than the first Fast and the Furious because there is e load of more faces i recognize elsewhere. Outside of Paul Walker, there is Tyrese Gibson from Transformers, Eva Mendes from Hitch and Ghost Rider, James Remar from Dexter, and Michael Way from Common Law and Almost Human. Actors that you recognize makes a film easier to enjoy.
Also on a side note, why didn't they bring Devon Aoki's Suki character back for more films in the franchise?