About six months ago sold off all my Valentine 1 units (I have to say that they did hold their value well) and switched over to the Passport 9500i units. These Passport 9500i units also have the previously mentioned GPS feature that can block out persistent false alarms AND they have a database of red light camera locations announcing an alert as you approach an intersection with a red light camera. I think these Passport 9500i units are pretty much the current top of the line units and we have been VERY happy with them.