For my next BMW I will get it, I hate the stone chips in HK roads so many.

 

I have it. 41k miles later, no stone chips .
I recommend professional install though.

 

I have never seen a car with a bra on in the UK, the ones ive seen in the usa tend to be black, and generally look crap. If USA roads tend to throw up more stuff at the car I can see the point. Otherwise, they detract from the look of the car.

cheers

steve