Good and entertaining, I started with this game on the 0.7 release and can say I have not regretted following it further, the story is certainly not groundbreaking but far from bad.
By far what I have enjoyed most in this game is the gameplay loop, which some have described as friendly, about that, I won't deny it, if you don't know what you need to do, you can certainly spend way more time than necessary doing minor tasks with little reward, and that can be pretty annoying, however I haven't experienced it but I digress.
The porn and scenes are generally really vanilla, with some scenes scattered with slightly more kinky stuff, although never to a significant degree, the animations are far from perfect, but still enjoyable; the art is really good for the 3D render stuff, which I generally avoid due the uncanniness of many other games.
The endings are alright, but I can't stress enough how obtuse the whole spider amulet thing is (Which is a real shame because that is what opens the, IMO, better endings), once you get it and manage to give it to the princess it is pretty straight forward.
Overall, a fairly good, fun and entertaining game.