I recenty bought a Polar A5 and found it easy to program and use.

It provides feedback on HR, Calories used, HR-out of range, minutes in zone, minutes working out and BMI.

The workout summary at the end was really helpful and I expect the self-test feature will be too as I test occassionally to see how my fitness is improving.

The receiver/watch is comfortable and looks nice (I'm a woman and hate big clunky watches). I'd recommend this model and Polar in general to anyone.

bye!