More of the same concerning Ambrosia and Celesphonia, which isn't a bad thing. From the get-go this feels a little more grindy to get stats going, though, and similarly to the other two games there's a lot of extra stats and tracked things that feel like they don't actually do anything meaningful - like in Celes oral/vaginal/etc experience determined the text for in-combat molestation and nothing more, but as far as I've seen this doesn't have any and it's still being tracked. The gallery is pretty full, but in the same breath it feels a little weaker then the circle's other two games - better than average, still.
Combat gameplay wise there's nothing special to say, really. Similarly to lewd stuff, there feels like there's tacked on stuff; you can custom build two other party members... but the game also gives you two named NPCs (and a few other friends you can cycle in) to run around with, who actually have dialog and scenes and such, so I question the point. It's also a boardgame set up, which is apparently in vogue and is a little tedious to go through but a hell of a lot better then running through empty hallways.
Still, it's good. I recommend you play on relaxed mode, with no timelimit; the game gives you plenty of rope it seems with it, and actively encourages you to do spicy things to give you more time in the base game, but it feels a little unnecessary. If and when this gets a Kagura translation, I am playing on the MTL version, which is surprisingly solid and coherent.