I played it the last 4.5 hours and think its amazing! It's finally an assassins creed game where you can feel that the devs had time to make scenes cinematic and meaningful. Same for the gameplay. They made stealth interesting again and implemented the raw fighting mode from last games in a new interesting way.
I also like all the characters so far. They all felt deeply connected to the story and were introduced properly. They also thought about realistic ways to show a black person in feudal japan. Very interesting!