While I did find it compelling to keep watching, I felt with each episode, it got messier and messier. Some characters start to get inconsistent or off-the-rails when least expected. Is that ok? Yes, it is. However, it felt very out of place compared to the tone of the story when a character suddenly did a 180 from sane to mental patient in the worst way. I was able to get past this, however, eventually it was the animation that made me drop it.
In the beginning, its nothing spectacular, but not the best linework either. But, as it went on, it was as if the team was cramming and unable to keep consistent anatomy in line with some character designs. It became more noticeable when the 180 personality flips started happening. I don't mind average or poor animation, but it really threw me through a loop when so much love was put into translating what someone's thoughts can look like and suddenly it focuses on a character's warped face. Is it done on purpose? I have no clue. But it was fairly distracting for me.
In the end, it was the animation that made me drop it. The story is certainly interesting, but not for everyone. There is food for thought with the topic matter of core memories and experiences people have.
