[yrb]

Depending on how you measure a lot of prefab construction you don't save time overall (design to finished) or end up with better quality. You also tend to up with buildings that will fail earlier due to having a lot more of the most risky components of any built form, joints.

I have hope that as designers and tools get better at dealing with the connection detailing and with material/assembly tolerances it will lead to better outcomes in the future.

I would really recommend watching "The Building Science of Prefabricated Construction". It does a good job of going over the realities of this form of construction.

[1] https://www.youtube.com/watch?v=aIeZlCfweMo