Anything stiff I don't have a lot of experience with commercial frames. But I did hold a genuine DJI F450 once and was amazed how flexible it was (flat plastic arms and spindly center plates). There have also been a couple/few other frustrated AQ users here trying that frame, over the last couple years. And I've seen the same complaint on other FC threads. I understand that the knockoffs can be even worse. OTOH, some people swear by them, hence the "YMMV."
A plot of the ACC values should give an indication of vibration levels. Ideally with the copter stationary but not in "ground effect" vibrations (clear air under the props, like on a box or a stool).
-Max