SIPs are great until something goes wrong. My Dad built a house on Marthas Vineyard in the late 80's to retire in. He wasn't a contractor by trade but very handy and acted as the GC. He neglected to flash the windows properly and down there, the rain comes in horizontal. It only lasted 10 years before the OSB had rotted and the siding nails were no longer holding. Long story short, we hired a local contractor on an hourly basis to strip off the siding and rotted OSB, and with snow shovels, removed all the insulation down to the inside OSB, reframed conventionally, insulated, new plywood, etc etc.
By contrast, the attached garage was conventionally stick framed but suffered the same water damage. All that was required was to strip off the siding and replace the OSB with plywood.
It was such a headache and expense that it forced a sale on the house.
Not to mention it's a PITA to wire.
I do like modular construction and this one was fun to watch. Thanks for posting, GPowers.