... IMHO, the difficulty is quite alright, though there could be some improvements in some parts... I quite like some of the characters but TBH, I don't really quite get into them as before in the first game where we actually interacted more with the girls and actually know them better before getting to the POINT, though I can accept the quick descent into it due to the current setting and all, but just figured would be better if we actually spent couple more dates before doing so. Some of the CG are quite good while some just aren't suited to my tastes IMO. Wished the dev could bring back more of the girls in the previous game but...(shrugs) Might actually want a guide to help compose the likes and dislikes of each girls and their gifts and what not as some of the unique gifts are quite vague... Also, don't quite get the point where gifting the girls gifts reduce their stamina, especially giving them food also reduces stamina as well.... Maybe dev doesn't want player to finish too quickly? Wish there was more Kyu's dialogue as well as I expected her to make some comment on the current pairing on the first meeting but she only does so on first meeting of a new girl... Think that was it about my opinions on the improvements.
But all in all, it is quite well made and I have yet to discover any sort of bug and I spent most of my morning playing it...