The A/C is good, but cost cutting can be noticed almost everywhere. There is no protection for the heat sink fins on the outdoor unit. The indoor unit dust filters also looks cheap. Plastic material in the unit also looks cheap. There is no horizontal swing feature, but manually adjustable plates to control air flow. But the A/C is powerful, cools the room quickly, quite silent. It can reduce the temperature by 6/7 degree on top floor comfortably. I am sure whether the coolings tubes used is copper or aluminium, most likely aluminium.the voltas split AC 1.5 ton is the best AC ever .the price of voltas AC 1.5 ton price in india is approx 30, 000