1."Hypnosis poorly done." - I think the person did play some hypnosis games, but most of them do have it working, in a way like a magic. This one is more like a real hypnosis (almost). As a Mind Control lover, i must say, i love this one. I love almost all mind control games and the more different they are, between each other, the better. If it is because of the difference between the magic like mind control and the real like one, then there is nothing you can do, for that person, to change their mind.
2."No choice for custom title" - maybe they are refering to the save files. Some games allow you to name the save files, so you know which one it is. Its the best for games with many choices. So you dont get lost which one is which.
3. "SFX" - well that one is hard. Sound can really help upgrade the feelings, especially mouns, but on other side, i dont remember a game, that had it so good, i was ok with all of them. Some are good and they push you up, and then others are avefull and make the experience worse. You then have to choose if you leave it on or turn it off.
Then there is the quality of the recording sounds. If its not clear and sounds like a something from a casette tape, that was used over 1000 times. No matter how good the moun was originally, it just takes you out of the moment completely (and if there are more sounds in one scene and every one of them sounds like from a different person, thats a bust as well).
So in conclusion, if you can found a voice mouns, that have a good recording quality and builds your lust up, you can try to implement them. If people like them, they leave it on, if not, they turn it off. I dont think you can make the game worse with implementing this, but it can make it better.