I'll keep you up to date. So far, it's great. No doubt the hub is heavy, but I've felt no difference in rolling resistance. Love the Grip Shift. Getting used to the difference in getting out of the saddle with a flat bar as opposed to a drop bar.

My first concern is servicing. Sheldon's site said Nexus hubs are quite well sealed, and should only require service at very rare intervals. I asked how often the shop services these hubs and they said they've never had these hubs come in for servicing. The shop said the best answer they have come across so far is to not worry about it until you notice that it needs it. Due to the nature of your axle being very strong compared to a quick release and also the hub itself is quite large resulting in less less rotation vibrations suggesting that the bearings will experience slightly less stress over other types of hubs.