In my opinion, this game has the best looking Hermione model, compared to other parody games based on HP universe, if we talking about 3D version, of course. Other female characters also quite good looking, like Nova and some of the teachers. Writing is quite good. However, the plot and world-building contain major flaws, as the original story on which this parody based on. Like, for example, even in common not magical supermarket there is security cameras, so you can't just steal you sweet roll, but in the magic academy where is dozens of valuable items the only guard is some old man with perverted dog.
As I noticed, there is 2 types of approach in creating adult parody, in the first one, the author creating alternative reality or making story after original events and and trying to make his own version of the world, and the second approach is the way of mockery where author humor everything especially plotholes and making game more comedy based. For now, it looks like the second approach with tiny bit of the first one, but I hardly can call this game a comedy, for now there is not much humor, there is few good jokes, but mostly the game feels like serious one. I'm not quite sure if the dev planning to remake all the original books in order, starting with the Philosopher's Stone, but IMO, it would be more interesting if the dev come up with his own story, so he won't limiting himself with room for action, and also will be able to create more unique events that will fit better the adult genre.
As for my general opinion about current version, I think this game have a potential, and I quite like it, but it has 2 major flaws for now. First, as people mentioned, it's save system. I only say that I also accidentally lost my save and was forced to replay until the second visit in the shop. Second, it's some unavoidable scenes. Firstly we got the option to skip content with goblin, but the last bestiality scene is mandatory to watch, for some reason.
It's not deal breaking for me, of course, but I would be glad to have an option to not see the content of some niche fetishes. One more small technical issues, was the text, which did not fit in the text window, if it was too long.
As suggestion, I would like to recommend the dev to create longer sex scenes. I don't know, if the dev planning to add animations in the future, but for now amount of cg's and dialogues per scene is enough only for "warming up" I would say.
And last suggestion, I would like to see more character development of Harmony, for now she is more like third wheel in the story. Yes, her insecurity and shyness show her character, but still other characters have too much influence in the story. It would be nice if she had more solo events and more character backstory, as well, as her reflection upon past events, to see the development of her character.
Finally, I would like to know if there will be some sort of stat system in the game, like corruption system, abilities in certain magic etc. For now we can get some relation scores with characters, but it seems it give nothing, so I curious how it will play out in the future.