Just picked up a new X50 last Thursday and have been using it for about a week. I travel about an hour each day in an average PSL of 55-65. State police presence can be extremely heavy at times considering the rural nature of the highways. We've had a lot of snow over the past few weeks so I havn't gotten a full weeks worth of LEO activity but here are my run in's.
Maine - Encountered a SUV LEO, C/O Ka a decent way up a large hill before he was in sight.
Maine - Same road, return trip around a curve, I/O NO WARNING.
NH - State Police, large long curve on highway, lots of other cars around, I/O very little warning.
So far, 1 out 3 times it would have saved me if I were speeding. Thankfully I'm treating this as a trial period with the device, but so far not super impressed. Are my expectations to high? I hear lots of people talking about the great range of this device.