Like most members, I tend to post on here when I have an issue with one or other of my Garmin products, so I thought I'd redress the balance a little with a bit of positivity. I forgot to bring my Edge bike computer with me to work yesterday, so had to use my 255 to record my commute home last night. Having briefly thought about it, I decided not to investigate whether it was even possible to pair a Varia Radar to the watch. However, as soon as I turned the light on the Forerunner detected it and asked me whether I wanted to pair. A quick click on the "yes" button and it was up and running, and it worked perfectly from start to finish of the ride.
So it's big thumbs up and thanks from me on this element of easy connectivity and integration within the Garmin ecosystem.
Steve