I loved this anime, it's a little different from your average harem anime. People describe the different species as "fetishes met", but I see it as "accepting someone for who they are, rather than what they look like". It's all a matter of perspective I suppose. I do think the story would've been better if they put some more focus on the actual learning between different worlds, maybe throw him into their world for an episode or 2, which would probably make the anime a bit longer in the process.
I do know that I would love it if they made a second season for this, possibly sending him to their world for a few episodes, actually telling us who he's choosing or a few other species as side characters (some male "monsters" would be nice as well, since the only ones in the anime are the group of orcs).
Overall, my opinion: The characters are likable, the art and animation are good, the story is decent, the opening is cute-ish, the ending is awesome and the anime is just entertaining.
