I too drink tap water which has gone through the brita filter jug. I do cook with the water from the tap though. Tap water is good here in Hawaii. I was in Arizona for a few months a year ago and their tap water was really shitty. I think its more of an aquired taste though. People that have lived there since they were small thought is was ok but I sure as hell didn't.
I live in Phoenix and I refuse to drink tap water at all, it tastes so horrible.