Having found this game when it was on 9.0 or 10.0, it's taken some time to actually review it. And after reading through some of the other reviews i'll bring some points up regarding them as well.
Sound
3/5
I don't think the sound is remarkable, but personally I don't pay that much attention to it anyway, and it's not something i seek for in adult games. I could give it a 2/5 or a 4/5, to me it's all the same. It's not remarkable, but not bad either and serves it's purpose in moments.
Graphics
4/5
Taking some feedback from other reviews, i honestly don't know how custom or default the models and variations are. I have not gone through the software, but to me the characters work. They don't feel default or standard to me, and I can properly tell them apart. I like certain design choices, and while perhaps some models are a bit more plain looking, combined with shared outfits some characters have, they do all still feel like they have their own identity. More on that later.
Plot
3.5/5
The plot can be pretty nonsensical at times.. certain events or interactions might feel odd or not entirely matching with the pacing of events. However, the red line of the storyline holds it together enough that there is progress, there is plot, events and interactions that are based on it. And while it might sound as a negative, it is a porn game after all, and for this purpose it does the job good enough. It also has a habit of not being predictable, due to it's.. bit nonsensical and wimsical nature. In this case, i'd say just go with the flow and enjoy the ride.
Characters
4/5
Now for me, this is probably one of the most important attributes of a game, what do i think of the characters within it. Do I like them? And for this game it's definitely a yes, they might be a bit one dimensional, but they are endearing, have heart. And with the wimsical nature of the story, having these characters match the same attitude and energy, makes it all fit well together. And that is exactly the charm. The characters nature is often reflected well by their behaviour in scenes, and in their dialogues. The interactions characters have among each other also feels quite natural, in a wacky kind of way since.. as started earlier, the game is a bit wacky.
Dialogue
3.5/5
The dialogue can be quite silly at times, but it does match the characters feelings and nature well, the interactions are often light hearted andpretty funny, giving it all quite a lot of charm. The only minus being thata handful of typo's are present, ranging from 'just typed the wrong letter', to not knowing how to write a word, or writing it 'right' phonetically (grap instead of grab). But not to the frequency for it to be jarring, often my mind would auto correct it while reading anyway.
Erotisicm
4.5/5
There's quite a varied arrange of scenes, and only more on the horizon. Seeing how things develop is often why I wait with reviewing, if reviewing at all. While perhaps a bit plain at times, it's a mixture of the models, the dialogue and lastly...
Expressions
5/5
Of special mention. I don't know what it is, while some models look similar, dress similar, the expressions combined with their overall attitude, posing and dialogue is what puts this game apart. They work really well, and heavily contribute to why characters have their unique feel and identity, why the scenes have a high sexual feeling and why the dialogue flows (works) as it does. The subtle changes in posing, but primarily (facial) expressions make it all come apart. And gives me a reason to mention this seperately.
Overall Score
5/5
Now i know if you take the averages, this number won't come up. But that's not what it's about. For me this is about how much enjoyment i get out of a game as a whole, how eager you are to continue/pick it up upon a new release. And for me personally, this game strikes a fine balance between all of it. And with the latest release (0.12.1 as of writing), i found myself pick it up asap and continue onwards.
Lastly, Okemia best girl. Airi close second.