It's not top of the line, but it does the job. Cobra owns Cincinnati Microwave now, who makes Passport and Escort detectors, so you're getting similar technology I'd imagine. Not a bad deal for the price. Find some speed traps, don't speed, and see what sort of ranges you get out of it. Maybe make a few passes.
I like using those "you're going XX MPH" automated sign setups cops post now and then. great for testing out radar detectors.. and acceleration. haha