Did my first actual road ride with it yesterday, 12 miles of which was on the wide shoulder of a state highway running out to our nearby reservoir (100F day, so lots of recreational traffic and boat-towing going by). The Varia greatly reduced how much I was eyeing behind me with the helmet mirror. I do a lot of traffic detection based on sound, and on a busy highway with traffic going by at 55+ both directions, disambiguation is tough. Not for this thing. The only time I didn't get a clear depiction of what was approaching behind was when it was a ragged formation of 30+ motorcyclists riding 2-3 abreast. It let me know something was back there, but I think its little brain couldn't figure out quite what, based on radar reflections.

Highly recommended. Mine was paired with an Elemnt Bolt.

--Richard