Think the problem with many other games is they try to be too complex and try something new, the way ~I see it is what isnt broke dont fix it,
The problem I see with this game is that its really boring, in terms hentai it feels completely disconnected from the main gameplay which is pretty much a essential JRPG. Its like you're playing a game and then, "oh let just take a break from the game and watch a hentai scene". After many games that do actually integrate it pretty well, this feels lacking. The hentai scenes are good I agree, but the general story telling and context build is just so terribly generic.
final fantasy was good from 1- to X a few after that were ok but they started to go crazy with innovation and it ended up decent still but not as good as the classic days in comparison.
That's a pretty dumb comparison too I must say, with each new iteration of that franchise they introduced new mechanics and new features, specially when going a next generation console, and within each game its unique storytelling and own adventure. What makes it drop in quality (and same goes for hrpg such as this one), is that they lose sight on what really brings enjoyment to the player.