This movie did indeed seem like the guy picked up some hookers and made a little film. Some of the girls had good personalities but the guy (we don't see his face) had a little problem with control if you knowe what I mean. All in all I would say, go for an american made amatuer which has orientals in it. You will get better quality.
Not all the girls even had sex in this movie. They are all hot, but the camera work was lacking, a couple scenes are great, but the rest could have been better.