I avoided this game before due to the constant discussion between the players and the developer, I think both take this too far, if you don't like something you don't have to play it and if you create something you have to know that someone will dislike it.
that said, I played both episodes and I have to say that I enjoy it, it was a different kind of history which is something that is desperately needed, I played both routes (ntr and non-ntr) and both were interesting in their own way.
my only real criticism is the constant need for a walktrought, I miss a lot of content because I made a wrong choice here and there that bloke me from seeing that content forcing me to replay the whole game from the beginning. However, once I saw all the content I was pleased to find that it was good and made the replay worth it.
I recommend anyone who wants a different story to play this game, I can't promise you'll like it, but at least you won't have the feeling that you already play this game 100 times with a different name, just don't play without the walk-through or you will miss some content.