The Human Warehouse is a great idea but please give it more than just one internal slot!
In no playthrough did I actually use it because of this.
Reasons: Every big storage like this is probably supposed to be a shared storage and thus the slot is already gone. At the point of unlocking the Human Warehouse, almost all my buildings are running a behavior, even if it is just to sort and display their inventory. Then also looking at it's size of 3x2 it is way easier to build other buildings which have enough slots to support all my needs and still offer a great amount of storage.
The already integrated powercell is a nice touch but a storage building does not really have a need for power. Give us a second internal slot instead please!
