If I had to compare it to something, I would say it reminded me a lot of The Amazing Spider-Man 2, but better. The main problem of the film is definitely being unfocused and having way too many things going on. There was a lot of jumping between stories and characters when they should have focused it more on the main conflict, which (spoilers) is an 8 minute fight towards the end. Definitely felt similar to TASM2 where there wasn't really a plot so much as different things happening. Bruce is doing his thing investigating criminals which leads him to Lex, Clark is doing his thing with the moral dilemma of whether Superman should answer to anyone or not, Lex Luthor is doing his thing with experimenting with Kryptonian things, as well as wanting Batman and Superman to fight, and then you have a lot of scenes dedicated to Lois and the newspaper crew, setting up Wonder Woman, Flash, Aquaman and Cyborg.
Unlike TASM2 it has good parts though. The Batman stuff was all really good. The portrayal, the costume, Alfred, the batman cave, the gadgets, the CAR. Everything involving Batman was pretty much perfect. It's just a shame that the movie as a whole was a bit of a mess.