Bought 2 replacement frames only because I wreaked my original frame crashing full speed into my kids outdoor climbing playscape. The original frame took quite a few hits and tumbles while learning to fly acro. It even was run over by a car once because I lost signal (bad fc). So I would say these frames are well built and designed.
Great little frame, I broke my last primo frame. This version looks like it is stronger, transferred all my components flies great.
Best frame I have.