Amazing graphics optimizations, considering the dynamic lighting and how many objects are rendered.
With a few exceptions, I think building placement is outstanding. Hold alt and it snaps, even if the other building is far away, with audio cues. Conveyor belts give a dopamine hit every time I place a long one. That is with foundations of course. Without them you get the spaghetti mess.
What is more difficult than Factorio is that there are no blueprints or robots to build stuff for you. Also, the terrain doesn't help, we can't just destroy cliffs. But that's also interesting.
However my gripes are the same as yours. Placement is an unwanted meta-game that they ought to remove via better QoL features. The existing alignment, snapping, picking, and repeating features are inadequate for a game like this.