Some complain that these bikes are not exciting enough. I find they do things so well that they make riding easy. Despite its 'adventure styling' the NC750x is not a true off-road bike but can manage gravel roads and dirt tracks pretty easily. Appropriate tires for terrain help. If you plan anything more serious than established dirt/gravel you should upgrade the suspension a bit. But we have gravel roads in my area and I have no issues. Just did a 4000 mile trip that included gravel tracks and no issues on the trip.
The 2 most common complaints I see that are not related to 'excitement' are:
1) some of us find the seat uncomfortable and
2) some of us wish the fuel take had a larger capacity.