I upgraded from my old Whistler Radar Detector to a Valentine One once I got the money and I must say it’s a great detector. Between the front and rear detectors and the three band indicators I can tell approximately where radar is coming from. And the detector has a built in logic system that keeps it from going off when it detects false signals from automatic doors.
I don’t advocate driving above the speed limit, however there are a few times that I’m going over and the radar detector tells me to slow down. It’s nice especially in heavy traffic, you can start slowing down before all the other people notice the cop under the overpass and hit their brakes.