I have no hesitation in recommending the frame and truss system. Over the past twenty years I have built sixteen houses with steel frames. On the last two builds, I used the new 90mm frames. These frames are far superior to the old frames. The 90 mm frames are more ridged and fit together a lot easier than the old frames. The flat bracing and adjustable tensioner allows one person to plumb the frame and eliminates the need for sheet bracing. The frames are light and can be easily erected by two persons. The trusses are a far better design while still remaining easy to handle. My last project had standard trusses sixteen meters long and we were able to get them off the ground and erect them with three men.