I had purchased my Passion in 2001. The odometer clocked 86000 km till date. The bike is really value for money.Milage is near about 60-65 km per liter in city. Other than regular servicing; I had replaced the Head lamp, rear suspension and rear Tyre. The rear suspension is not comfortable.Bike vibrates above speed of 55 km.Breaking is not so good.
With doing regular servicing it will not pinch your pocket deep.
Overall the bike is really good, spares are available at any small garage and not expensive, Durability of the parts is good.
Just go for it.