Well, decided to give this a try...
If I were to rate this, I'd rate it Meh out of Meh with an extra sprinkling of Meh on top of it. The protagonist is hot enough, no real complaints about that. However, the animations are mediocre, with some of them being downright awkward in a number of ways. Special mention to the one where she's fucked on all fours and the viewer perspective is from the side, and the late tentacle boss one (just look at her left nipple and you'll likely know what I mean).
The story is near non-existent and full of unanswered questions. Don't even get me started on the 'second half' of the game how little sense that makes...
It's not the worst H-Game I've ever played, but it's definitely not worth any money. As other users said before, it feels like the RPG part was tacked on just so they could say it's an RPG... but it's really not much of one at all.