It's extremely slow for dungeon doors, for no reason.
It currently,
-Builds wall
-Removes wall
-Builds wall
-Removes wall
-Asks butler for more planks.
-Massive downtime
Normally you would Ask the butler after the first wall is removed, after being built. Causing 0 idle time and mass efficiency. Any reason for this? Makes it somewhere around 50% productivity.. or worse. Otherwise no major complaints.