My escort 9500 has paid for itself many times over in 3 years of ownership. I always slam on the brakes for k or ka. The gps lockout feature for false alarms is a great thing too. Unfortunately in my new hood, Cali, they like laser. I have only had one positive laser catch in that time.
Fwiw I use it in my cars. On the busa I'm usually more tuned in and looking down the road.