This is still a deeply flawed movie, but it is a significant improvement on the 2017 film. Whether this is due to Snyder's superior vision, or the simple fact that the film finally has a singular tone and feel without studio notes, and a substitute director trying to meet too many conflicting expectations, I couldn't say.
I consider the film to be a triumph, simply because an artist who had his passion project ripped from his hands by horrible tragedy, got to come back and finish his work. That's rare with cinema, especially when the artist is given millions to finish such a massive project.
I think it's rather clever to have made this version not contradict the films that followed the original, in any significant way. It allows the studio freedom to make the planned part two, if they are so inclined, within or outside of the broader DCEU continuity.
Is it a great film? No. Is it a good film? Maybe. It's beautifully realized, and full of obvious passion and care from all involves. Measured against the theatrical version, it's a dramatic improvement, but on it's own, it is long on tone and short on story. The six part structure is a plus, as it gave me breaking points that let me watch it over three days.
It was an enjoyable experience to watch, but your mileage may vary based on how many of the plot points require knowledge of DC comics lore, that is not explained in the film itself.