I've used the Escort Passport 8500 X50 series for quite some time now.
It works well and you can get them fairly cheap now. I stuck with the RED light version to match the interior of the car.
PASSPORT 8500 X50 - Escort Inc.
My brother has the Valentine 1 and IMO goes off way too much for things on the same frequency other than radar.
There is also the high end model of the passport series:
PASSPORT 9500ix - Escort Inc.
It offers GPS technology to eliminate false alarms and also adds safety/speed camera detection warnings as well.
In the end it depends upon how much money you're willing to spend. GL
