I have used this 1 ton Window AC for the past one year. The performance of the AC is good as the main component, the compressor, is sourced from Mitsubishi Industries Ltd. The AC cools a 120 sq ft room comfortably and the noise levels are tolerable. There are no issues with the power bills too. However it is the service which causes one to feel peevish.
The service, in Chennai, is handled by Franchisees of Whirpool. After buying the AC, I got repeated phone calls from the call centre of the company trying to convince me to take an extended warranty. The ladies at the call centre tend to think that we are kinder-garten kids and warn us about the dangers of not taking the extended warranty or AMC as they call it. The extra cost comes at around Rs.3, 500/. As I am a person who doesnot part easily with my money, these people kept on extending the "LAST DATE" for taking the warranty. I refused till the end. But the attitude of the service technicians when they find out that we dont have the AMC is apalling.
They simply go about the free maintenance routine as if they were playing around. Another issue with installation of window AC is that if the window happens to be an old-fashioned one, the service fellow brings his carpenter who charges a ludicrous amount to have the window altered to accomodate the AC. This amount, presumably, is shared between the carpenter and service person.