Yeah, been playing this too and it's pretty fun. Definitely triggers the gotta-get-everything completionist in me, though I'll admit I've been playing on classic rpg mode which pretty much takes away all your worries. The progression in terms of unlocking new things and finding new succubi is nicely spread out, in my opinion.
Not that much in the way of kissing specifically as far as I've seen, and the scenes do feel a little... quick. But it's still a lot of fun, and there are definitely elements I like, like the whole making friends with succubi and getting relationship points by allowing them to have their way with you when you try to sleep mechanic...
Had to put my aspirations for a 100% save on hold though, what with the translations for Parade Buster coming out...