They nailed the First Family and everything which made them beloved! It shows the Game was written by a Marvel Comics writer, because everything you liked about the team is present. From Reed's cleverness and love to talk and theorize about everything to Doom's interest in taking over everything for what he considers the best for the planet.
Annihilus was a really awesome surprise, and I was really pleased to see both the Negative Zone and Latveria as levels.
Gameplay wise they also nailed the team. Sue's a really good tank with enough practice and that was what I was hoping they would make her.
Overall, an easy 8/10 from me for this DLC. Just thanks Koei Tecmo. And I'm looking forward to that UA4 you people teased at the end!!!!