In our family we have the 640 and the Dakar, on day to day you can live with the Dakar and long miles touring with off road and dirt roads, but the suspension is not a 640. The same can be done on the 640, but it's not it's forty, it's a off road with a big tank.
It's got a viby motor, and hard seat to live with everyday, changing oil is a mission, your legs and hands go numb form the vibrations.
In the end as a off road bike it's briliant. And like MJ said it's a focus bikes.