The first 45 minutes was really, truly terrible. The piecing together of the team was all over the place, and generally way too brief. But! After that, it seemed to settle in a bit and was actually pretty good for me. Better than I expected.
I'm really digging Cavill as Superman and Gadot as Wonder Woman. I really hope we get a MoS2 without Snyder. Aquaman and Flash need more room to breath, so hopefully they get their own movies to flesh out the characters. Cyborg's motivation was done really poorly, he was just kinda there.