I was lucky to choose zero b purifier over other brands. The product was really good coming from Ion exchange I knew the product to be good but I was skeptical to pay so high a price for this.
But I think one should not go for the initial price of the product. When I bought the purifier it was 15% above the market price of similar products but still I went for it based on a recommendation of one of my colleagues and I thank her for this advice as I had experienced totally trouble free service all the while.
I would recommend this to others.
Moreover you can buy it directly from the company site https://zerobonline.com. where they sometimes offer discount as well.