It's a trainer, all right. That's the only positive thing I can say.
So this is a sort of a mix between true freeroaming sandbox trainer, and narrative-based training, and for me it fell short in both aspects. Basically, it's a collection of serialized modules, with each module providing one individual trainee. No procedural generation here, officer, move along. On the outside of these modules, as far as I can tell, there's basically nothing in terms of narrative. There's very little in terms of strategy, you buy some upgrades to your bedroom and dungeon, a few gifts and magical items here and there and that's it.
The trainee modules themselves turned out to be rather simplistic. Yeah, they have limited branching, emphasis on limited. The problem is, they are written like mini-VNs, not like trainings, and are constrained by time (you have around 10-15 sessions to train). To be fair, that would not be a problem on itself, but the writing and accompanying photos lack conveyance. Using real porn as illustrations is obviously going to deprive you of pictures with a whole spectrum of facial expressions (because porn wasn't directed with you using it as a prop in mind). And the writing does NOTHING to alleviate that and offer some aid.
Now, the rest. The visuals are BAD. I thought I knew what I was signing up for from screenshots... I was wrong. Thanks for reminding me that aging "professional" porn stars look like the cheapest crack whores. Because in some cases they are on crack, and are destined to die on the streets as soon as they are discarded by the industry. Yeah, yeah, what a fun tangent. The fact is, out of the whole assortment of fully implemented characters I encountered, only two were somewhat attractive. The rest ranged from "meh" to "shut the fuck up, just give me your stupid candles and get the fuck out because I have zero intentions of finding out how you look naked". Like, if this is thematic integrity, with the theme being "used goods", congrats, you nailed it. You train used goods in game, with used goods of a porn industry served as illustrations. Thanks, but that is a firm no from me.
The UI wasn't great either. It's not thought out well enough, and has strange idea to use varying fonts, text sizes and colours, some of which can make your eyes bleed.
In short, I did not enjoy the game, 2/5.