I have Tata Voltas AC last 4 years, I have fantastic experience from the same, there is no service issue, excellent cooling, easy operate, excellent mechanism. Service engineer is supporting well. it is superbly silent despite being a window AC.
This 1.5-ton Air Conditioner with a rotary compressor has an energy efficiency ratio(EER) of 9.57. It has Digital temperature control, LED indicators on display panel and LCD Remote Control. It has features like auto restart, sleep mode, dry mode and on/off timer. It comes with fresh air switch which allows fresh air intake in the room. It has received 3 star rating from Bureau of Energy Efficiency.