Nice that it adds laser shifting too. Luckily around here they are too lazy to get out of their cars to use the laser so they mostly shoot radar. My Escort Redline is mounted inside my BMW tankbag and feeds an Autocom also in there that direct feeds my earphones for the alert. I also put my MP3 player through it too. Yes, I lose the Laser ability being in the bag but that method is done mostly by the moto cops off their bike, and I often spot them as they are closer than the radar guys and the brake lights ahead are telling too.
The Redline has given me a nice 3 mile alert at times on Ka band and I know that is the bad one here. They are expensive, but even a 2 MPH over can cost you $178 around here in some counties. Yes, some will write you for that and arguing with the judge who say "We don't dispute traffic tickets in this court, and if you want to waste the court's time, it'll be $350." Welcome to the new way to make money for the county and keeping them employed.
I have 4 of the things and even an airplane one too (i.e. a Zaon PCAS). They have paid for themselves many times over, even at $500 a pop. I also leave the bikes in the garage on "Motorcycle Enforcement Days" as they will write you for anything: Speeding, exhibition of speed, unsafe maneuvers, non-approved license plate locations, weaving, improper signaling, and even "invisible pedestrians" to justify their safety grants for overtime enforcement. Last one of those phoney I.P. tickets cost me $850. Fine might be the cheap part, but those court and extra fees are worse!