I am just a noob and don't know very much about detectors. However, I thought I might post a quick review since there doesn't seem to be any reviews out there yet. I got an XTR-220 and have been using it for 3 weeks. X and K detection were decent at around 1800 feet but I am quite concerned about Ka. The times I have detected it from the State Patrol it was within 300 feet, not enough warning to slow down. I am not sure it is even picking up POP mode at all. There is a speed trap I go through every day and it NEVER detects the Cycle Cops quick point and shoot sessions. Yesterday I was positive they gunned me because I was within 40 feet and could see him aiming right at me. Not one blip out of the detector. I also get at least 2 VG2 false alarms a day, especially when I pass the airport. I have gotten 2 Laser alerts that I think were false as well.