Voltas is a very good product and customer support service is too good its my personal experience becuase at my home I also use voltas air any time when we need a service just one call and they come over same day its unbliveble few months ago I call to service my air after service I feel my air littel bit noicy and I call again to service center and tell about the same problem they told me ok they will recheck again and I see they come back same day and fix to my aircorn I am very surprized and very appreciate to great service.