The first thing to be said about any of these fitness-tracking apps is that they're attempting to streamline things you can already do. You can listen to music, record run times, and map out your routes yourself, with distances, elevations and average speeds all available to the industrious data logger -- but if you get the app, all these things are done for you. It's critical, therefore, that the Nike+ GPS application gets the detail of its data tracking correct before anything else is even discussed. Thankfully, that's exactly the case here, with accurate readouts for speed, distance, and all the rest. GPS mapping of our runs was wonderfully accurate, though we might take issue with its elevation measurement. If you look at our run breakdown here, you'll see the measured elevation being very different at the beginning and end of the run... which would be fine if we hadn't started and finished at the same spot.
There's a lot to love for micromanagers here, as Nike breaks things down to quite a granular level, with stats like your fastest and slowest mile (or kilometer, for Euro types) as well as a graphical representation of your average speed. Both the iPhone and online interface show a great deal of polish as well, with pleasing little animations livening up proceedings. Nike has had a good long while to perfect its online logging software (more than 444 million kilometers have been logged by sweaty Nike+ users) and it shows. If there is a fly in the ointment, it's the incessant "More From Your Run" advert that kept popping up wherever we went on the Nike+ web portal. Even when you discount the fact that we already had the app it implored us to obtain, the sheer petulant obnoxiousness of the ad was enough to discolor what was otherwise a pretty enjoyable user experience.