Yes, I get the homage to the cowboy samurai, the anime, and a good many (not all, I'm not that arrogant) of the "feel better about yourself as a film geek because you caught this" references. I just always feel so abraded when I come out of a Tarantino flick: I realize that full throttle excess is his calling card, but still felt that some of the cinematic techniques overshadowed the deliberately-shallow story. I know, he's all about being overdone, but even so, I think it needed another pass through the editing suite.
Referential without having any depth whatsoever: two-dimensional glossy cardboard, like movie standups in a video store . . . intentional, I know, I know, but in my opinion, it gets a bit tiresome given the length of the flick, and we have yet another part of it to get through before revenge is completed. Whee, we get to spend two more hours as Tarantino indulges himself by reprocessing archetypes and influences.
I didn't dislike it, exactly, it's just that all style and no substance wears on me after a while. Entertaining if you're in the mood for the sort of action movie that includes characters like the crazed Japanese schoolgirl, Go Go Yubari, and so much gore and gratuitous violence that I still don't see how the final release avoided an NC-17 rating, but . . . . after writing the above, I checked in to see what Ebert had to say about it. He liked it better than I did, but readily admits that the movie ". . . . is all storytelling and no story." It's not so much a movie as much as sensory overload, but again, that's Tarantino for you.