Wasn't sure how I felt after purchasing the 9500ix and then reading all the posts about sensitivity from v1 and redline...until I put the 9500ix in my car. You cannot drive on I-94, 894, or 43 in milwaukee without being constantly bombarded with k band!!!! Did some research and found out why....http://www.sensorsmag.com/sensors-ma...e-project-3721 . Turns out Milwaukee has these radars everywhere for traffic monitoring purposes. Without the gps feature on the 9500ix, it would be useless (just constantly going full K). Couldn't imagine using any detector without one here. Most interstate cops around here use LIDAR as well (have a blinder m47 for that). Very happy with the purchase.