I do not see for what kind of real off road this bike will be better than the GSD:
- for muddy trails, the mudguards are much too close to the tires and will quickly be full of mud, blocking the wheels.
- for rocky trails with stones and potholes, the lack of at least a front suspension is a major issue.

For easy trails, the GSD with its wide tires (62mm rear, 55mm front) and its suspension fork does a very good job.

For the price, I read that it could cost 7K USD, more than a Riese & Müller Multicharger!