Almost perfect!

Its a great interface. Allows you to play your own misic and it gives "run", "walk", and "nice job" commands over audio so you dont have to use the phone at all while running/walking. However. It tracks the scheduled run/walk periods on the gps, not what you actually run/walk, though, it accurately tracks your speed and average speed all the way through. Also, if you want to run/walk beyond the given time, it doesnt track it.

Mtorrey about Run 5K PRO! Ready Training Plan, GPS Track & Running Tips by Red Rock Apps