I'll try to keep it short. The four main things you need to know:
1. English-speakers, rejoice: Included in the files, if your Japanese isn't good enough to follow along more easily, is an English translation. It is very good and helped me follow the story better since my Japanese isn't great yet.
2. CV: Wataru Mitsuhashi is amazing and I am probably going to buy anything I see his name in now so I can continue to listen to such an extremely talented CV.
3. Triple recommended for people who love yanderes and the building up of intensity about the situation.
4. What a GOOD story and script, I love Makoto Sougami!!!!