Yeah, I lived in Austria and travel across Europe fairly often, the only time I buy bottled water is in the airport or when I accidentally leave my refillable bottle of tap water at home. The quality of the tap water is equal to or better than the bottled water.
That's more of an indictment against bottled water than it is an endorsement for tap water. Both bottled and tap water are too often full of stuff you don't want to be drinking.