A friend of mine purchased a new ferrari , they gave him a Escort Passport SRX radar detector and laser jammers. He was supposed to schedule an appointment with the service dept. to bring in the ferrari and have them install this SRX, he never did ! This was about 2 months ago he bought the car ! He gave me this SRX and I was wondering if this is any good ? I currently have a escort 8500 with a blinder m40 on my SUV. I was thinking of installing this on one of my other vehicles, is this unit any good ?