I would like to hear from anyone that has one, was somehow warned by it that a car was about to collide with them and used that warning to pull out of the path of the car.
The strength to the Varia is not that it will tell you when a car is about to collide. It gives you a situational analysis that massively exceeds anything you could hear or see. You know cars are approaching and whether fast, and whether more than one long before you could ever hear one, and without looking back. When I know a car is approaching fast, I am on ready alert and listening for its approach to be sure that I am not in its path. And, if another car is on its bumper, I know, so I can continue to be viligent.
Take Greatzaa up on his offer. At a minimum, you will have a fun ride with another tri guy. And, you may fall for the Varia.