I watched the final few episodes of this last night.
In terms of visuals and sound effects I think it was a solid experience, I quite liked the artwork and a lot of the design choices and atmosphere. The story was on the messy side, the plot really went off the rails after the half way point and as others have mentioned the heavy focus on the kids was more irritating than anything else. I can sort of see what they were aiming at, but they absolutely missed the mark and it ended up being meanderingly weird rather than insightful.
I'd say it's worth a watch if you're curious and have nothing better to do, 4.5/10 and despite this still better than the last movie.