It's hard to know how many times the sensor has saved us. I would never leave the awning fully extended in our absence, but partially? sure. If you are home or absent and there's a wind, a power awning will retract at the same speed whether the sensor or person is at the controls.
It's not so much the sensor keeping an eye on the wind, it's water accumulation that worries me and has created damage. Also, our awning can't be easily dipped to speed the runoff rate.
We have a Carefree of CO Mirage and at first it seemed flimsy, but once I came home to a hundred+ gal. of water and no damage. On another instance there was damage, but I suspect the weight of the water caused the support arm to punch thru the fabric.