Although design of this purifier is very attractive but still its performance is not up to the mark. In our area too much iron in water so after installation within 3 months the purification nozzle giving trouble, So we called the customer support and replaced by them. So as per the customer support and purification performance I want to give 3 star to this product. But installation of a cartridges its a bit a complex part where MI purifier is ahead as they are giving user friendly features.