TL;DR, It's "Papers, Please" with about half the gameplay, +100% more tits, and grind instead of intrigue.
There is no pressure to earn money by doing a good job (living costs are pathetic, no family to help, no one ever gets sick, the day never ends prematurely) so you can take your time with each person for the most part. The only urgency is earning enough favor by the next inspection day to progress the story, but there's no penalty if you miss it and have to wait for the next one.
This means that the experience lends itself to being much more of a relaxing power fantasy than an immersive exploration of power abuse and tyranny, which makes sense considering it is a porn game.
The story is simple but satisfying, and the gameplay loop itself can be enjoyable, but the driving force (your boss is a bitch) isn't nearly as compelling as the non-porn original, and so the experience suffers from an aura of tedium.
As for the sex itself, it has the vestiges of an experience that could be truly exciting, but doesn't commit far enough in any direction to fulfill its potential. You can make applicants pose for your enjoyment, but there are only two options. The game has smooth animations, but only for the player character (who is POV so you never see 90% of him). You can allow some applicants that don't meet the requirements of the day in exchange for "favors", but only if you burn through so much time that you'll probably miss the weekly inspection. You can break some applicants with pleasure and have them come back again and again, but only at the last chapter with a highly expensive item, and you can't use it on the most important (and interesting) characters because reasons.
I wouldn't go as far as to call it disappointing, but I would call it unfocused. It's got half as much as it should in the places it needs, and twice as much in the places it really doesn't.