After little over a year of use the Nike+ sensor died on me. I logged some 1500 miles on it and took it with me to quite distant places. The sensor followed me on my races in the US, Argentina, Brazil, Germany, Czech Republic and Canada. It will be missed - well not for long as I just bought a new one as I can not stand not to log my long weekend runs of 12-14 miles. It is all about the bragging rights ;-).