Dave, the thing I see with this system is that I might actually be able to do it without having some added experienced people around to do most of the work. My construction skills are modest, I can help frame a house, I can help do a lot of things, bit I am not the expert.
For something like an open sided structure, that is bascially just posts with a roof on top of it, this system might cost a bit more than stick built, but it is also a system that looks like I could actually get the job done and we could end up with an open sided covered picnic pavilion or similar structure. Given the winter weather conditions now, nothing is going to be built in my back yard!!! But in the spring, it might be something I could handle. I also want a 3 sided implement "run-in shed" and this again looks like it would work for me for that type of a project. I share implements with a trusted neighbor, it would be easier for him to get them from a run in shed than from either of my garages because generally any implement needed is the on parked BEHIND all the un-needed implements!