I bought four Chigo Air-conditioners 7 years ago for which air-conditioning centre is a distributor. The Chigo air conditioners were used on an average of 2 hours a day during 3 months of winter. The air conditioners were periodically serviced .One of the air-conditioners which was hardly used 20 hours a year , the coolant piping joint to the compressor split inside the outside unit and all the coolant escaped to the atmosphere . The compressor was burnt and the outside unit became useless.This shows very poor quality control for Chigo . The normal life of an air conditioning unit is 15 to 20 years. I have Hitachi and Daiken and Mitsubishi working and extensively used for over 15 years without any issues . I was tricked into buying the Chigo as it was advertised with Toshiba Logo claiming it has Toshiba compressor , now it is advertised with Panasonic Logo claiming that the current model has Panasonic compressor so not be deceived by Panasonic name in the Ad and do not touch a Chigo , it is better to spend £50 /- extra and buy another make which will give you trouble free service for 20 years . Many companies even give 7 years warranty. The reason I have given 2 stars and not one is because air-conditioning centre was responsive but the fact is that Chigo is a product of poor quality. Arvind Gulati