Summary: I was very excited to purchase this as an upgrade to a $50 wireless Cat Eye. I was looking forward to using it to track my rides and for uploading to Strava. I setup with HRM and cadence. Initially I was excited about the HRM, cadence, and altitude tracking but also didn't like that the unit seemed to struggle with average moving speed.
Summary: After two months of using my Edge 500 and communicating with Garmin about it's function and lack of function, I am returning it to REI. The most troubling issue it that it does not perform the mapping, directional guidance function that the manual says it does (more on that in a moment). The most annoying trouble is that the heart rate monitor performs erratically. First the positive. The data display on the Edge 500 is excellent.
Summary: If you believe that I can go 120mph on my bike I have some land for you. Computer will read 0 while going down hill pretty fast. Next time it reads 50+ mph. Sent it back got a refurbished unit same problem. Owned for 8 months worked for 3. Now waiting to hear from them. I expect more for [$] pass this one by.
Summary: I've had an EDGE 500 for 6 months. I bicycle at least 200 miles per week, with at least half of that on longer rides on the weekends. When the Edge works it's great: it provides lots of data. The problem is that the EDGE 500 usually doesn't work. I've lost track of the number of times where I had to re-download the same version of Garmin's Web Updater software that I had previously downloaded in order to get my computer to recognize the Edge.