Far from being perfect, but what's good here you won't find anywhere else.
Yes, the presentation is terrible. The girls are not as ugly as shown in the preview pics. Every act is physics based. Every body part has it's own sensitivity, pain tolerance and it's also affected by the girl's personality. Every hole has it's own tightness, pleasure resistance, prior experience and more. You can use numbers 1 to 4 to select items or hand types, or hit P to take clothes off. You can caress, poke, hump, penetrate and even slap.
The dev gets a lot of criticism, but I believe it's very hard to define the right progression for a game like this. It's a very unique experience, but currently it's also a bit confusing and makes some ppl just drop from the game right in the first minutes. Here are my suggestions:
1. Players should progress Slimness and Physique during the game. It's a mechanic as intuitive as it can be, since GTA times. Hit the gym, invest some time and money to get more attractive and see the results.
2. Modeling preferences should escalate more. I mean when girls say they are there just for selfies, or if they want to be a pornographic actress. It also includes the chat options when we invite them to make poses or take clothes off and consider a work in the adult industry. The last one should be broken up into 3 new "stages":
a) Nudity: right after lingerie modelling, similar to the last stage we currently have, the girl is willing to figure as a nude model and show her private parts.
b) Erotica: she is willing to pose nude or in very suggestive scenarios with another naked person. Includes touching her with hands or with dick to take pics, but no sex. This would be the perfect excuse to ask if they are comfortable with the player taking his own clothes off and to touch their privates or their body with his member.
c) Pornographic Actress: girls directly in this stage should be rarer, but a very interesting encounter with trade-offs and risks. She is willing to be "auditioned" as a new actress, but can still be reluctant to sex. Chat options asking her past sexual experiences and maybe options to convince her we will put "just the head" would be fun. Finally, nymphomaniacs, dominant perverted girls and girls willing to be "tested" by a porn actor should be also a test for the player's sexual skills, so there're clear reason to progress them. If you cum prematurely, if you can't keep erections, can't cum as many times as she expects or your dick is too small, there should be bad consequences.
3. Instead of upgrading only the office, players should be able to add new rooms and ambients to their agency. This would allow not only some nice variation for the game, but new progression options as well. The modelling agency could increment it's business and start producing pornographic videos. This would allow the player to audition new girls willing to be porn actresses and for him to cause the right impression, it would require certain level of sex skills.
Producing pornographic videos: This would be a big driving force to justify progression of the player's sex stats, as you need to have a good sexual performance to complete a list of specific objectives, like in the photo shoot. "Make her cum with your hands while in X pose", "Make her cum by penetration while in X pose and, after that, cum on her tits." and so on. If you cum too quickly or not enough times, she's going to react to it and the movie can fail or not do well. If you are too fat/unhealthy and the actress doesn't like you, boned. If you can't keep the erection after climax, boned. I don't know if it's technically viable, but figuring as a porn actor with 2 or more girls at the same time would be very cool.
4. Players should be able to progress sexual stats to satisfy mid/late game requirements, as described earlier. If the player wants to be the main porn actor of his own adult video producer, he needs to train and progress for it. Psychological aspects like anxiety could decrease with experience. Physique and slimness progression should also affect it.
5. Different personalities should produce more reactions, interactions and consequences: Girls could open dialogue if they notice our erection, or when the player whips out his member. Some rare encounters would be fun, like virgin models with pants of steel, nymphomaniacs that are willing to test your sex abilities and get angered if you can't keep cumming, size queens to laugh at the size of your dick if you chose to bring more money instead, and so on.
TL/DR: The simulation and interactions are amazing, but the gaming part is very crude to say the least. Progression is almost nonexistent, gameplay is repetitive and the UI makes everything harder to understand.