Quite simply mesmerising. I saw this in the modern art museum in Warsaw and saw it 3 times before I left the room. I think I'll probably watch it another 10 times on YouTube before I even come close to appreciating how intricate and clever it is (THIS is what marks it apart from the soppy The Snowman that some seem to think deserved the Oscar).
The interaction (without actual interaction) between the multitude of characters is fascinating to behold.
As my partner put it, "I'm freaking out!"