The main problem with the game is it's difficulty, I played the game for 13 hours, got to the 7th out 13 missions, I was at the end of the mission, had been playing it for over 2 hours, when I was about to leave the area and the game spawned extra soldiers right at the exit area, where there were already some enemies that I left alive because there was no reason to kill them, you're not supposed to kill every guard necessarily, you're even discouraged by how punishing the game is.
That left me in a situation where I had 14 guards in a small area each looking at each other, and only three characters to use, couldn't kill any of them without warning at least a few others, after a long time I just found impossible to continue.
The game wasn't fun anymore, just frustrating, there are some charming characters and some good japanese voice acting and an interesting setting, but the difficulty make it frustrating instead of fun, I play games to have fun, not just for the challenge.
I don't have a problem with challenging games, I enjoyed the old Resident Evil games and Resident Evil 4, even on professional, the Ninja Gaiden games, System Shock 2, the Kotor games and others, but this is just hard, not challenging.
I would recommend this game to people that are fans of the genre and fans of hard games, like the souls or x-com games, for everyone else I would say it's a pass, if you play games for fun this is not for you.