I am the user of O General AC(Window) for my 100 sq.ft. room, no doubt it is a very good AC available in the market.It gives good cooling . After sale service is also good. There are certain drawbacks in this AC, this AC is very costly as comparison to other AC in the market. This AC shows that the person who are using this type of AC are the people of high quality. The spare parts of O-General are not so easily available in the market.