Bought a V1 right before a 2000 mile round trip to SC beach. For the most part I was very impressed, but driving a section of 75 between Cincy and Dayton, I was ready to throw the thing out the window!
Every few minutes, and I don't think I am exaggerating, I would get an I/O full alert front arrow lasting about 2-3 seconds, a brief pause, and then a half alert from the rear... K band if I remember correctly. This happened both heading south and then north a week apart, and only between these two cities. WTH???
I was very impressed at one point, slowly having an alert get stronger and stronger over I would guess a 4 mile stretch, until it hit full but was only a highway message sign.