Whistler DE-1655 Radar Detector

I bought this product because a friend at work recommended it to me. He also uses the same one. I was a bit skeptical at first because a local police officer came into my drivers ed class and told us that radar detectors were a waste or money. I drive a bit fast at times so I decided that I wanted to try a radar detector. My friend at work set me up with the Whistler 1655 and ever since then I have loved it. It uses voice alerts when it detects X,K,KA and laser in the area. It also has a little meter on it that lets you know how far away the signal is from your car. It also has a small eye on it that allows signals from behind to be picked up as well. I read somewhere that this didn't work very well. It has worked every time for me.