There's not much to get. Tarantino wanted to do a homage film largely inspired by Japanese yakuza films from the 70's (the Hong Kong influence came in the form of Pai Mei). Maybe what threw people off was teh fact that he incorporated a lot of elements into the movie; Japanese gangster movies, Hong Kong kung-fu movies, westerns and his own films. He was obviously trying to emulate the styles of movies he saw and that affected him as a filmmaker and put his own spin on them. The fact is, it's not a movie that can be easily summed up into one genre or the other, and I guess that confuses/annoys/angers some people.
I'm not a huge fan of Part II, but even Tarantino's worst is better than 99.9% of the rest of Hollywood (such as mindless garbage like The Transporter). Kill Bill Part I also happens to be the best thing to happen to action films in a long time, but this isn't the thread for that...
Slightyl back on topic, what always bothered me about the Transporter was that he was supposed to be a driver and yet most of the action in the movie was lame kung fu. The series would have benefitted greatly from focusing on that aspect of the character, instead of trying to be another lame martial arts movie. I'm guessing from the trailer with ridiculous bits like the car jumping out of parking garages that it won't get any better. Oh well, I guess we can always rewatch Ronin.