Although I do not use the Incident alerting feature of my Garmin 520, I do use the Live Track feature. On a couple of long rides I've stopped to take a rest and I'll get a text from my wife asking me if I'm ok? When using this feature also remember to enable the Extend LiveTrack feature in the Garmin phone app. Just in case anything happens your data will still be live for 24 hours. I usually email 2-4 friends with each of my rides. Although this feature is reached through a link in your email, it does give you pretty accurate up to the minute tracking.