Strengths: I find the average pace and heart rate monitoring very useful in my training
Weaknesses: The heart rate belt is too big even on the smallest setting for a 32" chest. I had to swap the belt with that of an old HRM. It would be good if garmin could provide a 'Garmin for women' pack
Overall: A good gadget. Whether I'll get faster or not by using it I don't know, but it is a fun toy!