This game has some negatives, but plenty of positives as well. To start, I would like to note that the game improves quite a bit in the more recent chapters. So if you don't mind waiting it out, it may be worth a shot to you. It is pretty short so far anyway.
The artwork/models are well done, but my issue here is that they are overused. There is very little variance in the artwork. As the game goes on, it does (eventually) seem to begin to try and remedy this issue. Also, as a note, some of the transitions annoyed me.
You don't really have any power in this game as it is quite linear. Most choices/options have no real effect on the storyline (just some minor dialogue stuff and some lewd scenes on/off), but this could change in the future. This isn't a huge negative, as it is a visual novel. However, it feels like nothing is really happening a lot of the time as the progression/pacing is very slow; so, without any real power in-game, the story starts to feel quite empty. I'm not huge fan of mini-games, but they do help to break things up a bit and create a reprieve at times. It almost feels as if the first five chapters are the introduction. Chapters 6 and 7 start to really get things moving, so I was pleased with that. I have high hopes that things will begin/continue to get interesting very soon.
My biggest positive for this VN is the writing (dialogue, specifically). I found it to be quite clever, silly, and even funny at times. It feels very believable in many respects, which is often difficult to achieve in an erotic VN/game. The writing gets my highest praise.
In the end, I was slightly annoyed while going through the first five or so chapters, but eventually it started to suck me in. I have high hopes that it will continue to improve, and hope that I can come back and raise my review rating in the future.
On a personal note, Kathy is amazing.