I hated this movie (one star), but others may love it (five stars). Just depends what you like.
There are no interviews (I like those, maybe you don't).
The girls are roughly handled, and survive it more than they enjoy it. The girls are choked, slapped, slammed around, and hammered, frankly, abused. They aren't having a good time, just making a paycheck.
If you like girls being slammed around and fucked hard and not enjoying it, you'll love this. I fast forwarded through most of it, and did that rather than just turn it off ONLY because I ALWAYS write reviews of discs I rent.
I thought I was going to like this film a lot more than I did. I was rather disappointed.
It may work well for some fetishes but it just wasn't for me.