Just finished ZR1 and, wow, definitely a lot better than I expected. It had the right amount of gameplay, story, and hentai. Not overly complicated to play, not overly drawn out with the grind (cheat mode helps, thanks!), and plenty of repeatable scenes to whet someone's appetite. Best thing about this is the amazing art done by ScarlettAnn, and they're both animated and voiced!
I literally have only ONE complaint though, and that is the fact that pregnancy is such a TEASE. With certain characters you get to explicitly inseminate them, yet no baby-bump or nothin'. They continue to act like nothing happened even after many days. Too bad the devs didn't add content for this. I mean if they wanna continue to update this game for whatever reason, THAT would be my number one choice lol.
Otherwise, great game. And since this is my first introduction to Siren's Domain I'll be sure to check out their other titles. In particular Town of Passion since it seems like there's some connection between these two games. I know there's also ZR2 but it's currently WIP and I'd rather just wait till it's finished.