Strengths: Ease of use is exceptional. The read out is very clear and during the dark winter nights the backlight is very good. The training partner option is great for pacing yourself in races and training runs.
Weaknesses: Software is not ideal and I often have problems connecting to my PC. Reception can be an issue in wooded and built up areas. A priniting option of routes, etc would be a welcome addition. On occasions it can take time to connect which means standing around.
Overall: Very good and since I bought it I haven't run without it. Although it does have a few minor faults it shouldn't detract from its overall strengths. A great product and I don't know how I managed without it