Hoo boy, as you can tell from the games' pics in the thread, they've got a definite niche appeal, and most people aren't going to like them.
Regardless of whether or not you (or I) like them or find them disgusting, they're pretty good, containing quite a huge selection of things to customize (except unfortunately a lack of toy customization.)
One thing I gotta mention is that weird connection with Twitter, and the daily stuff.
The currency in the games can be earned by going through the tutorial, getting the girl horny enough, getting daily rewards, and making recordings of your interactions and posting them to your Twitter account. For most people, this will mean you're going to have to play the game on and off for quite some time to unlock everything.
The downside to all this is that you'll get everything you want pretty quick, sure, but 100%ing the game will take a little while and there's really not much of an incentive to continue getting money once you've got what you want, which means the game then becomes less of an actual "game" and more of a "move your mouse up and down simulator."
Still, the art's nice (Vol 1 is just ehh, though), and the grinding isn't as bad as I thought it would be.
Just, uh, don't actually try to 100% the game, unless you're using Cheat Engine. CE works great in this game, very effortlessly.