All depends on what u need...
CG is a work horse, a bike to be used roughly and it would still keep running. A no nonsense, working guy's bike!
Dug dug sound is good, but it has its own draw backs.. such as it wont give u much confidence on high speed... and on high rpm exhaust seems too loud.
Contrary to the popular belief, cg IS comfortable but on speeds of 50-70max.
Its seat was very stiff initially, but now it has softened and it is indeed doing good job cushioning the bumps!