First of all, this game is a good game (duh, i rated it 5 stars).
While you can always argue for things that can be better, like graphics and so on, overall this game is a really good one.
However..
This is due to potential, setup and the idea that it grows larger. If this game is released as is, i would only rate it 4, due to the shortness of the game.
The "love" system with the girls is good, and i enjoy the different scenes the resident girls. I would have loved to see the residents getting better equipment or in case of the guild girl, better adventurers. It sucks that you have to max out her love, to actually get any followers to begin with. It would be a lot better to have a few low mid and high tiers, that unlock along the scenes of Bj, sex and special.
I find the girls quite lovable, in the way that they have their own personalities, and arent just cpy/pste with different colours-type of thing.
I would also like to see some better setup with the different classes. I love that you can get skills from any class there is, but it feels like a waste that the classes dont have more "oompf" to it. And having hybrids (like the paladin) should be applying for a specific mix of playstyles.
In regards to the stats, it would have been nice to see some way of increasing the stats permanently, but slowly, and using the crystals for more "aggressive" or meaningful bonus.
TLDR;
Good game, with potential for greatness! I wouldnt mind paying for this, even as it is, as i think its made wonderfully. But i hope the devs expand greatly on the adventurer aspect of the game!