Symphony company is the best companies in India there are many types of models like jumbo, strom 100 i, sumo, diet 50i, etc these are the best but the best one is jumbo it’s my personal experience and there are any problems in the cooler the service is available in 1or two hours and you can complain in online then the complain is show in the service centre and the engineer is come at home and repair the cooler and you have no charge to pay to the engineer this is my review I can say that symphony is the best cooler