Strengths: A great use of satellite technology specifically for runners in a reasonably compact device.
Weaknesses: The pace measurement is not accurate enough to rely on and loss of signal can be an issue in certain areas.
Overall: Overall, the 201 has had the biggest impact on my running above all other kit. No more measuring runs, either before or after. No real need to plan routes as you're always aware of how far you've gone and equally important, how long it's taken you.