This is one of only a small handful of games where I wish I could give an extra star, because it's just that good. 6/5.
The game has a smoking cast catering to different roles and kinks (the GFE, the kinky submissive minx, the bitch, the milf, the dominatrix, the slutty doctor). Amazing renders and locations as well. There's a truly impressive amount of content: Each of episode 1 and 2 could easily be a stand-alone game on its own, and I had days of fun trying to find all the scenes. Ep3 is still mostly a preview of things to come right now, but it's looking great too, and I can't wait for more.
There's a bit of femdom content with the Susan character, so be aware of that if you're in the category that hates it (Edit: Actually I forgot the game lets you turn it off if you don't want it). I personally welcomed the occasional break from the old MC-builds-a-harem story though, and would have loved to see more along the femdom path.
Finally, I need to mention the excellent in-game journal and progress tracker that both lets you stay on top of what you're missing, and how to get there. You generally will not need a walk-through as the hints it gives you are sufficient in most cases. I wish every game would do this.