The setting has interesting mythical-fantasy elements in additional to sexual-fantasy elements, scenes are plentiful, dialogue is amusing and not excessive, characters attractive, animations are good (in later content), and eroticism is high.
This is particularly satisfying as a bit of a departure from some of the darker or more complex themes that are prevalent in other popular projects, the setting and theme are bright and positive without heavy emphasis on more challenging dramatic elements (e.g. rape, incest, netorare...).
I am by no means suggesting what elements are better than others but that the *ahem* feel-good atmosphere game is a satisfying example of its type and I look forward to this project's continued development.