Tone,
I used to have a V1. It wasn't all that great or I'd still have it. I traded it for a shift knob.
From a guy who knows a thing or two about radio wave propagation, the V1 has excellent receiver sensitivity, but little else to offer.
Bad ergonomics, ugly appearance, lame display, poor laser discrimination.
Without the presence of a (large) multiple antenna array, there really is no true directional capability to the V1 -it's all a gimmick based on signal strength. Crack open a V1 and count the antennas (that are forced to receive an attenuated signal thanks to your precious metal housing) -and tell me that there is a really a chance that the V1 can pinpoint a radar source (which is already bouncing off of every solid object in the vicinity).

If you really do the research, Mike Valentine's V1 has fallen behind in every legitimate category. It's a shame, because at one time it was a fine piece of gear -15 years ago. Valentine has legions of loyal/rabid followers -if he'd just get off his high horse and get back into a lab I'd say he would produce a world-beater in no time.

When your laser alarm is falsing thanks to the tailights of a Chevy Trailblazer, you'll understand what I'm talking about.