So now that the nuvinci bikes have been out for a while I find myself preferring the Gen 2 bikes with the Sturmey Archer 3 speeds. Both are somewhat hit or miss in terms of shifting (sturmey's that ghost shift or can't shift into 3rd gear and nuvincis that can't shift into overdrive).

That said, the nuvincis that can shift into overdrive, seem to take more effort to attain the same speed as the sturmey's in 3rd gear. To me it feels as if maybe there is some mechanical loss somewhere in the nuvinci hub that makes it harder to pedal than I experience with the sturmey.

Maybe it's just me but I find myself working harder to maintain the same pace on a nuvinci as I would with the sturmey.

This is based on repeated use over the same path for my commute to/from Brooklyn to downtown Manhattan.