Rack, lights, fenders, disc brakes, IGH - looks like a commuter to me. I'd say you've made a choice that will serve you well. As Jeff says, you can change the gearing with a larger cog, but you could also consider a smaller chainring, in which case you wouldn't need a new chain, just pop some links out of the one you have. Also, I wonder if some of the seat discomfort is due to the seat angle? It might just be the angle of the photo, but it looks like the nose might be a bit high. Enjoy!