All I have to say is... It's got arrows!!! Once you get use to the directional arrows, you can't go back. Don't you hate that beep! then you glance in front of you a few seconds and then look in your rearview mirror and then to each side? With the V1, you know where it's coming from and believe me those few seconds saved scanning the surroundings will save you!
Here's a scenario where only the V1 would have helped. Flying by the, 'Your Speed Is XX mph' radar signs, obviously the V1 was going crazy, however this time the LED said 2, indicating 2 signals (I can't remember of 2 bands were going off too). So I slow down and there was a cop hiding behind the radar sign! I was suprised as I thought the V1 was doing something screwy, but luckily I had slowed to 5 mph over only.
The cops in my area use Ka band and the V1 picks it up fine. Also, my local Home Depot uses X band door openers (7 of them) and Walmart K!