It's showing up differently on mobile, but it is currently sitting in the high 70s with credits praising the vfx and some disliking dialogue. Even seen some compared it to a phase 1 mcu movie.
The individual movies after BvS have done pretty well. It's a shame WB rushed so much trying to catch up to Marvel instead of just spacing things up and letting it build with their own films before dropping Justice League. Mamoa and Gadot have easily been standouts as far as comic movies go.