Still processing, but my overall take was mixed but leaning towards unfavorable:Warning: Spoiler! (Click to show)
Impressions in no particular order -
Pace was a problem.
Why pin all the "Deaths in the desert" on Supes for using non-government bullets? Nonsensical. Supes doesn't use guns.
How did Clark figure out Bruce was Batman?
Really? "Martha" is what breaks the bat-rage?
Doomsday looked like crap. Also what's up with the electrical energy + heat vision/breath? (Although I did like creating him from a kryptonian regeneration pod)
Wonder Woman's introduction was cool - and I don't mind just dropping her in the story at this point.
Superman felt underpowered fighting Doomsday
Batman really won't listen to Clark as he approaches him, walking through all those traps?
Batman was rather violent stealing the kryptonite from Lex - I've pictured "bat-thefts" as more covert ops as opposed to full-scale assaults
Didn't like how quickly the world transitioned from "Did Superman just assassinate Congress?" to "let's build another monument"
The desert scene was trippy - cool to resolve it with Flash coming through the speed force (although the uniform wouldn't have suggested it was Flash anyways
JL video file introductions were cool, but took a bit too long
How is Diana onto Lex, and thus onto Bruce?
How does Martha go from Kansas to Metropolis/Gotham so damn quick?
Overall the Doomsday fight was just a hot mess - resorting to nukes so quick? (although blowing Supes up and then watching him regenerate like DKR was cool)
On the other hand, the Batman "martha rescue" scene was super cool - taking those shots to the back of the cowl? HOTDAMN
Clark and Lois relationship was pleasant to be dropped into - no need for exposition.
Supes seems to save people at a rather slow pace (hovering in the air a lot...)
Whole theatre jumped when the demon bat came out of Thomas' grave.
MARTHA IS MAGGIE FROM TWD!!!
Supes needs to get his head together. This whole lamenting loner crap is too drawn out.
Batffleck on the other hand was really well done and put together. Like Nolan's Alfred though more than Jeremy Irons
Too many subplots all swirling together made it hard to follow
Overall, it fell victim to Spiderman3 syndrome of trying to cram too much in too quickly.