I have been using my Unicorn from Nov, 2006. Till date my bike has faltered only once, that too due to dust in petrol. The carburettor got clogged (thanks to a petrol pump in Mumbai). Other than that my bike has never ever given me any trouble in operation.
Till now I have clocked 25, 000 Kms on my bike. I have never changed any parts of my bike, not even the clutch pad (given the traffic conditions here in Pune). Its basically a very good bike and it knows how to repay its owner if he takes a little care of it. I am very satisfied with the performance of my bike, but a little disappointed with the service centres though. The condition of the service centres are very pathetic and they have a very small number of them here at Pune.