This movie was good if you like japanese girls. It does take a bit getting used to the way the girls moan like children, but the guys do know how to appreciate a woman's body and make sure to finish when they've gotten there. 4 star because in some cases there was not enough light.
..about Japanese porn based on this movie, the only Japanese porn I've ever seen is: 1) Japanese people don't need to totally disrobe to have sex. 2) Japanese women have hairy bushes, absolutely NO ASS, and moan like school girls. 3) Japanese men do exist and their penises are smaller. I'm not saying what I just wrote is true, but it is for this movie. Having said all that, I rented this movie out of curiosity, but it didn't do it for me.