Not a bike that you would constantly keep complaining about, but the Avenger has got some serious flaws which can be noticed only after riding it for a couple of months. The top speed is limited as 115km/hr which is considerable low for a 220cc bike. The Avenger provides a mileage of 30kms/liter and slightly above 34 on the highway which indicates that the engine drinks petrol like a fish.
And yes, get prepared to take the bike to the service center after every long ride, or after a ride to the hills. And of course, the low quality stock tires that seem to lose grip after 1000kms or so makes the bike a poor ride.