If I bother with one, I think it's Valentine V1 or nothing.
Uhhh, yeah. What he said.
Cheap radar detectors will let you know you have just gotten a ticket, sometimes even before the blinking red light shows up in the rear view mirror. But they aren't that effective in preventing them.
And even a V1 is outmatched by properly-used "instant-on" radar. And lasers? Forget it. They'll latch and lock on in the same instant that your detector goes off.
tanstaafl.
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"There Ain't No Such Thing As A Free Lunch"