Not sure if the brand is the same, but there are some of those at Cammacks at Union Center SD. I was surprised at how well the small one attached to a frame building, then to a larger one at the other end. They have been there for a few years, at least, the larger one has, and looks in great shape.
Friends not far from us had one go through a hail/wind storm last summer and it got maybe a couple of holes, when their house nearby was pretty badly damaged. I heard the hail seemed to bounce off the fabric, which makes sense.
They look like a good deal. Heat, cold, wind, nor snow seems to damage them like it does typical buildings. Frost heaving foundations seems to be a real problem in our area, even when well built to proper depths.
mrj