Finally watched it this evening with the wife. I rated it 5.5, she rated it 5.
I don't hate the casting even though I thought I would since I loved Henry Cavill as Superman. Lois, Clark and Lex all looked in their place.
Visuals were unimpressive. Close ups of faces shot with wide lens were strongly overused in the movie. CGI looks bad in many scenes (opening scene where Superman is carried by robots looks so plasticky, and the dog looked weird as fuck, giant Stitch-like monster looked very rubbery and lacked weight). Interdimentional rift looked like I have already seen it somewhere.
I think Lex Luthor (actor, and much more so the character) got too much praise - he is poorly written and lacks any depth at all, he is just an evil bald head. Because he needs to be. Crying scene in the finale made both me and the wife go from "wtf" to evil Peter Parker "gonna cry?"
Luthor's staff are completely filler. Nanite girl sucked ass and just did weird facial expressions. Also trying to choke Superman to death is dumb, he can go to space ffs. Remember what Omni-man said about breathing in space? Fun part is you don't.
Secondary characters were OK, however the reporter rejecting the hot blonde is cringe. Him being a chick magnet is some inside joke I don't get.
Also, this is a very rare occasion where I fucking hated the dog in the movie. The only other movie where I hated the dog must be Cujo, I guess.
The movie did not resonate with me at all, I never felt any emotional tension while watching. It was not bad per se, at least not offensively bad, but as someone said above it felt way too safe and campy.
Will not re-watch, not looking forward to Gunn's DC Universe. Sorry.