Ease of use
Design and form factor
Received my Nike+ Fuelband in the mail today. I must say I'm impressed so far. Nicely designed package, great industrial & product design, quality build, comfortable on the wrist, easy setup, clean display - even functions as a watch (bonus). I'm a fan so far. Certainly exceeds the Jawbone UP...then again that wasn't hard to do as they set the bar really low. Only gripe...mobile app is only available on iOS, not Android.
I just hope it performs better than the Nike+ GPS watch...which ended up being a great looking product, but a huge disappointment in terms of performance. 8 of 10 so far.