I'm so conflicted.
I love the artstyle, I generally like the story, the gameplay is just good enough to be engaging but not detract from this being at heart a porn game, I like the characters. The spacing between H-scenes and filler is perfect for long game sessions. I am sometimes mildly annoyed by the trope of "MC is clueless" but that point passes. If this was where the review ends, this game would have gotten 4 stars and maybe 5. Sadly it's not where the review ends.
The game is so overproduced it's very laggy, anticipate about a second of input lag per input. Normally this wouldn't be a problem in a RenPy VN, but this isn't a VN, you'll be doing a lot of menuing, and you'll get annoyed with the slowness after around 30 minutes of gameplay.
Speaking of menus, here's a hint I wish I was told - the hitbox for the excursions, the button you probably click the most often, is probably about 5 pixels wide at the very top of the table. Good pixel-hunting, hope your hands are steady.
While I generally like the story, sometimes I wish the writer were thrown into prison and never given a pencil, so that they aren't able to write anything ever again cause the writing is that nonsensical (all the constant passing out for days upon days, the whole "your sister is mind controlled by the bad guy and manages to kidnap you with two enemies you can easily defeat" sequence, the early sequence of Mia being rescued is a casualty too, there's also what currently passes for an ending...) - thankfully, these moments are rare, but you will want to rip your eyeballs out when they happen.
Although the hints system is pretty exhaustive (thanks hints system!), you will still be faced with sometimes getting lost with what you have to do, sometimes getting lost in the labyrinth of levels, and sometimes having to pixel hunt the entire map to find the thing that you're looking for. Exploration is fun, puzzles are fun, being given directions that don't work, labyrinth traversal and pixel hunting is not.
Combine these two and you get a very engaging, very hot, but very annoying experience with episodes of rage. I really want to like the game, but I just...can't.