Conclusion: Update: Garmin has issued a July, 16, 2010 firmware update to fix the freeze/lock problems described in user reviews below. The Garmin Edge 500 is compact and has a clean, no-wires installation. It has a customizable, multi-mode display, accommodates an optional heart rate monitor and cadence/speed sensor, and is compatible with third-party power meters.
Pros: Compact, feature-packed, highly customizable., Sharp appearance, nice detail and finish., Convenient and sturdy stem or bar-mount system., Compatible with heart rate monitor, cadence/speed sensor, and third-party power meters.
Cons: Smallish display size = difficult to see text if more than five data fields displayed.