Enjoyed it a lot
SPOILERS
Not a fan of the big robot that got to fight the JL members, and Dead Wing did not appear enough.
Loved all the JL members fighting each other. Superman is my favourite DC character and seeing him go through so much and losing it in so many ways, was a good arc for him. so many well known heroes getting killed off. It was a surprise, but somewhat of a nice novelty.
Harley was funny and I really enjoyed Plastic Man. Batman was Batman.
Thoroughly enjoyable for a one time watch.