My honest review:
The story is decent, not too perfect but it's at least above average.
My gameplay was roughly about 6 hours, but it could be more than that if you read every line, I'd say about 10 hours if you did.
What I dislike about this is that you don't have any freedom of choosing who you would be with. I tried everything just to be with Noriko at my first playthrough but I couldn't and ended in a bug where you can't progress after going through the befriend route of Asami (After sleeping with her). Everything has a laid down path. The choices that could affect your playthrough only happens at the start of the game, as far as I noticed, and would go through a linear plotline. Not that I'm complaining. It's really hard to make a separate 7 hour playthrough just because you made a different choice. Also 0.8.1 has a possibility of NTR at the ending of the update.
Personally, I don't like how the large breasts look a bit off or saggy on the sprites but then again, I'm here for Noriko's.
Art is great, and its worth every bucks. Looking forward to the next update.