For me the big let down with the Nike+ watch has been the USB connector. It worked great at first but over time it has become more and more difficult to get my PC to recognise the watch is plugged in. It charges no problem but getting the Nike + proggy to see the watch and transfer data has become a nightmare.
"Running a marathon isn't just an athletic achievement. It's a state of mind; a state of mind that says anything is possible" - John Hanc
And he is quite right, state of mind is important when the going gets tough.. but John Hanc also features a full 16 week training schedule in his book 'The Essential Marathoner' and recommends extending that training period if required.
The 'touchy' posts here are just runners who want the best for you. It's not like they don't want you to be part of their club. Just in one piece.