I have the water filter since 8 months now. The product works fine like good water taste, TDS is low as per the readings of service person & the service is prompt when logged from site. It is just that the machine makes an awful noise each time it works. The service person says it would remain so in RO+UV models.
Counterparts like KENT make about 0 noise and are cheaper. Caveat emptor(buyers beware)