I love my zero-water filter, the filters are not cheap but the clean water without piles of bottles is nice. Also, bottled water reads some solids in it, one brand even had 34 PPM, the zero water is pretty much 0. It starts tasting bad before the numbers get too high.
I'd recommend it to anyone, just don't think it will save $$ because the filters need to be replaced and the dirtier the water, the shorter their life span.