We just got off the Crown Princess (and hanging out at Starbucks for the next few hours)
We had no problems with the water at all. We brought 2 big water bottles with us and we refilled it from the buffet or from the tap. The water actually tasted pretty good. We took our water with us when we went on excursions- I just couldn't get myself to pay for the bottled water they sell right when you get off the ship.