Strengths: Very accurate - the ability to program the Forerunner to 'pause' when waiting to negotiate traffic is a real plus!
Weaknesses: There aren't any! Connecting to 'outer space' can sometimes take a while...that's enough time for a few stretches...after all, it's a long way to those satellites and back!
Overall: For the sceptics out there, the Forerunner 201 changed my approach to running. If you haven't used one, borrow one and try it out. They are simply brilliant. The 'Garmin' software enables you to create your own running log. The downloads are very easy and it even generates your run as a map.