Snyder films are a certain taste for people. You either love them or hate them. I imagine if you didn't like BvS you probably won't like his JL either but if you liked it then you will probably like this as well. The problem IMO was that Snyder laid out a 5 film arc similar to LOTR where it was going to have a beginning middle and end. WB had always thought he was building towards a MCU style universe where it would continue theoretically forever. This forced them to change the plans of JL after it was already done shooting. I think in the theatrical cut of JL they used about one hr of his footage so if you watch the ZS Justice League film it will be completely different from that. It will have different tone, different characters, different villains, different fight scenes. Look at some of the cool stuff that will be included. If nothing else we get a completely new JL film as a bonus for 2021