We had a system for a number of years but ran into problems trying to get replacement filters. It’s out in the garage now and we’re looking to replace it with another. My wife wants something with local support that’s been around a while; I just don’t want to spend a fortune. There are a 1/2 dozen or so nice, tankless, high flow systems that appear very easy to self-service and take up very little space but they are Amazon type things, no local support. There are two dealers that carry tankless systems but they’re too expensive to just buy, which brings me back to the old style systems with tanks and multiple connections to the filters (Like the one in the garage). The tankless system usually have the water channels built into a manifold so minimal connections and leak possibilities. Anyway, a representative from one company is coming out tomorrow and I’m getting frustrated by it all. Are any of you folks using an under sink system? What did you get? Did you buy or rent? Thoughts/advice?