CNET has reviewed the $330 Belltronics RX35 radar detector.
Here's what they thought:
"The good: The Beltronics Pro RX65 offers a nice set of programmable features and its tested performance ranks with the best.
The bad: The LED warnings look rough, although they are informative. The volume button isn't particularly convenient.
The bottom line: The Beltronics Pro RX65 works well for novice to advanced users, giving long distance warning about radar monitoring. Although we had some interface issues, the device works very well overall."
Personally we don't bother with a radar detector, everyone drives 20 over the limit and as long as you stay with the flow of traffic you never get ticketed.
(more at cnet)
You got it right! as soon as you keep it with the traffic you don't get ticketed, however there are chances when you don't realize that you have actually crossed the speed limit and that's where radar detectors help, I am using Beltronics radar detector and have no issues at all! thanks.