I enjoyed the movie. It is what it is: a big dumb comic book on the big screen.
The Clark and Lois dynamic was really well done, and gave the movie a real emotion depth that would have been absent without them. Ben Affleck is a better Bruce Wayne than he is Batman. And yes, some of the script was wholly ridiculous, such as the numours dream sequences. What were they all about? It must have been utterly confusing for some people. It isn't a film parents could take their children to see, which isn't what anyone would say about the Marvel movies. Wonder Woman was somewhat monosyllabic and I didn't like her transformation into a Xena Warrior Princess barbarian. But it was good to see a woman alongside the men fighting, and I'm glad Lois was there too at the end in the fight against Doomsday. Some dialogue was terribly poor. When did Superman start calling his 'mom' by 'Martha' anyway? If he'd said, "He has my mom," which would made Batman pause for thought at the idea of this alien having a mother, then Superman could follow that up with, "They have Martha." Randomly shouting, "Don't let them hurt Martha..." felt odd.
Lex Luthor. I really liked him. If I had to write for Superman in 2016, if I had to put the myth into a modern context, I would write Lex Luthor in a similar style. I love him as a mad scientist too, but I've always favoured the corrupt corporate billionaire version and in an age of Facebook/Microsoft with their respective famous owners...I could totally see this version of Lex Luthor existing.
I doubt we'll see a sequel though. We'll have to make do with Affleck's bland Batman and Gwenyth Paltrow playing Catwoman, knowing our luck.