I am very concerned about the durability. Members of the forum are suggesting 100 k before an engine rebuild. Which is ridiculous. Other bikes I've had have been hammered and lasted over 4 times that. As for quality I think all manufacturers are the same.
Having said that I feel majestic every time I ride her and I have had no problems at 50 k.

The suspension and is very bad. The exhaust is terrible and the rear wheel Cush drives need replacing periodically.