How is the Pulsar N125 in long rides?

Of course we know that the Pulsar N125 is marketed as a sporty commuter, but what about those weekend getaways or the occasional long trip? Its comfort is the stuff of legend for longer journeys, but some riders complain of fatigue after a couple of hours. All of these factors include the seat design, riding posture and vibrations at higher speeds. There’s the fuel efficiency on highways versus city riding. How does the smaller engine do on inclines, or when fully loaded? Don't forget the pillion experience either – is it comfortable for your riding partner on those longer stretches? I’d love to hear from riders who have taken this bike out of its normal comfort zone of urban riding.