**Mild Spoilers Below**
The scenes appeal to a wide variety of femdom monster girl lovers (which is exactly as advertised). My only complaint is that some of the earlier ones have a secondary male character that (imo) does not need to be there. This is definitely the main selling point (so far) of this demo.
Gameplay wise, there's not much (if anything) to the battle system. However, there are a few random puzzles/games inserted to break the monotony. Personally, I think putting in more "temptation" into losing these games would put them a massive step up. Keep in mind that I said "more", since the Dev has added some in, albeit weakly at this build (which is perfectly okay considering it's a demo).
I think the story is 100% the weakest point, and needs quite a bit of working on to keep the reader/player more immersed, especially in the H-scenes. That being said, I'm not particularly sure what kind of direction the Dev wants to go in. Based on what I gathered playing, it seems like the game overall doesn't take itself too seriously but is a very inconsistent at pushing that feeling.
As comparison examples, I think Shrift and MGQ both do "serious" stories well. On the other spectrum, Monster Girl Dreams is an excellent example of a non-serious lighthearted game. Horror Mansion has some "serious" things you'd expect from femdom MG games like snuff/draining, but you can't help but break that small bit of immersion when characters like the Hot Dog guy show up. I'd like to see the Dev stick it to one side or the other, and not teeter too much in-between.