He felt like the end really tied in great to the mythology of Batman. And that he wanted to see what would come after this movie. To see more of that Batman universe.

Edit... oh and in describing it to me he said the end was to Batman kind of how there were moments in the Star Wars prequels that really brought that nostalgic Star Wars feeling. Like seeing the two suns setting over tattooine at the end of episode 3.

He thought the start was disturbing/sad watching some dude fall into metal illness.

He said he would definitely watch it again.