Placement of most things in build mode feels too restrictive
It feels like you often can't place things because the bounding boxes are so large. I personally would rather risk a bit of clipping to have more freedom when building. Some examples off the top of my head:
* Plants need to be spaced very far apart. This is the most important to me because it makes it really difficult to make a nice garden.
* Lots of structures e.g., paper press, are just a hair too large to fit in 1 square (between two walls).
* Waygates take up what seems to be a large square even though they're circular. Other structures have this problem too where seemingly empty space is not available.