Nice, RO seems tops. Gotta sacrifice some water of course. Remineralization, interesting. Pricey? Evaluate a lotta brands? curious which one you went with.
Out where I am they have primo. So I just take jugs to fill up. They're my favorite by default though they don't really have any other options where I live
I have a berkey and I really like it. Makes my water taste like water. Not much different than running fresh mountain stream water through a katadyn or something.