Anyone use Versatube? Would like opinions for garage build.

I appreciate the info. I agree with the "one stop shop" idea and getting it insulated before moving anything in. I've done some preliminary work on what the County allows. This is where I have run into some issues....I can't use vertical seams for the walls. Someone, in their infinite wisdom, believes the vertical seam makes the building look like a shipping container. So that wipes out a lot of the garage makers (for one stop shop). The idea of "frame only" was to have it match the house more...shingle roof to match house; some kind of siding as I have a stucco finish on the house as well.
I've had one local company that installs garages say they won't work in my County anymore because of their nonsense.
JW - what insulation did you use? I see there are different ways to insulate and I thought the spray foam route would be best and seal any "leaks" there might be.