Cool air limited to le area. Review on Symphony Sumo Desert Air Cooler

In the 2014 summer the weather is so hot.iam unable to adjust to the weather.Then we bought it for my home.we keep the symphoney desert air cooler in the hall.The hall is fully cooled with this cooler.But there is a drawback with this cooler.The drawback is less area cooling.It cools a small room only.It doesnot spread this cool air to to the remaining rooms.Obviously we want coholing for the overall home.But it is not providing this facility.Hence I liked its cooling, but I disliked it's limited area cooling.And the pump is repairing every year.Without repairs it is not working properly.Because it is totally jammed with the dust due to the unusage of long time.We always use cooler is summer only.Remaining seasons it will be packed and keep it over a place.Hence every year it has got repairs.Hence I disliked its repairing.It is costly also.