I have both a fly6 and fly12 on back order, so can’t attest to their quality yet. I think of them as revenge cameras. They will do absolutely nothing to prevent an incident. They will give my wife’s lawyer some ammunition if I get squished.
I’ve been riding with a varia radar since it first came out. I was eagerly awaiting its release before Garmin bought the company that created it. I have had zero issues with it. I’ve “calibrated” the display by knowing when the dot for the car reaches a particular data field on my head unit, it’s time to check the mirror. Yes, I ride with a small mirror on my left bar-end. The two together are indispensable. I’m pretty sure I’m able to type this today because I had the radar and mirror 2 weeks ago.
I was riding on an empty road when the radar chirped, and the dot popped up on the head unit. i checked the mirror and saw a beater pickup about 100m behind me, riding the very edge of the shoulder-less road. I kept my eye on it and it wasn’t moving off the edge as he approached. I waited as long as I dared, then bailed onto the grass next to the road (no curb). It passed without ever moving over. After a lot of swearing (and wishing the cameras had arrived already!) I got back on and finished my ride without further incident.