Saw it today. It was astoundingly mediocre. The plot was incoherent at best, but it was a cool spectacle. I really didn't understand Lex's motivation for well.... anything. It was like "Oh I'm just crazy and doing this for the lulz". Affleck's Batman was okay, but I prefer Bale's batman from TDK trilogy.
Wonder Woman was cool though! And it did get me intrigued for Justice League, so mission accomplished I guess.