Los Angeles has been named as having some of the best tasting water of any municipal water supply. I do remember the water there tasting pretty good, even in San Pedro, at the end of the line.
KF will never win such an award. The water here is so awful, and anything you cook with it tastes like the awful water, including coffee, tea, spaghetti, punch, whatever... no flavoring can hide it. The bad taste is so overwhelming it over rides everything. Even BAKING with it leaves a nasty taste in whatever you've baked. I'm thankful our fridge has a water thing that's filtered.
People I know who have lived here their whole lives don't notice it, but that was one of the first things I noticed here. blech.