I disliked the original Justice League and thought this was mildly better. The movie still bit off way more than it could do plot wise and the only thing that helped the synder cut is that it's a four hour long film and was able to fit in more development for the character. As others have said, Cyborg in particular getting more time is to the film's benefit.
It still shouldn't be four hours though and there's plenty in it that could've been cut. The whole post apocolyptic shit is so incredibly bad and devoid of anything redeemable I don't understand why this cut felt the need to shoehorn more in. I can't fathom why anyone would want to see that film. Just bail on that plot/framing of the future.
Despite being better, I still can't say it's a good movie. It's still pretty devoid of charm, the versions of the characters the film portrays are far too brooding and melodramatic, and there's no natural progression in this film franchise because they rushed the extended Universe format way too quickly. But it's still an improvement. Even though it's maybe less jokey that the other cut (which I can't say it is) at least it does away with some of the more tonally disjointed parts and instead focuses on a consistent tone (a melodramatic charmless tone, but consistent). I don't see myself ever wanting to rewatch either cut, but I suppose if I was forced I'd watch this one again.