Voltas 5 star 1 ton are seriously of great quality with a great cooling sense and the best part about the air conditioner is that it consume very less electricity and bill doesnt get much heavier apart from that we also loved the service provided by the voltas company they visit us every 4 th month for servicing the air conditioner .it has been more than 3 years but my air conditioner is working in excellent manner no issue I have faced yet regarding anything .even the cooling sense is very fast and uncomparabale