Rick Nelsonwrote a review of Garmin Edge 500 With Cadence/Premium HRM on August 21, 2012
Familiarity: I've put it through the wringer
I purchased the speed/cadence sensor as well as the heart rate monitor for this unit. When you upload ride data to Garmin Connect, you not only get charts and graphs representing your ride, you also get a map with your ride highlighted. Very cool! Unit has proven to be waterproof on several rides in the rain. Battery life is awesome. Battery is not user serviceable, but according to Garmin, will last several years. Acquires satelites within seconds from powering up. I am very pleased with this purchase.