@ Costco
The dealer who was at Costco:
Kinetico's main company website:
According to reviews, Kinetico is the "Rolls-Royce" of water filters. The main complaint about it is that it is expensive. I couldn't find complaints about its function. Apparently the water pressure is very strong even with the filter. A major concern some people expressed is that you can only get the parts from Kinetico, so there is a limit to who can service their water filters. If the local dealer goes out of business, it may be difficult to get parts. There was one person who found that costs of repair work is not covered by the warranty, only parts are covered. That case seems to be in the US, it might vary in Canada.