We're on a well here, so the bottle water just tastes better, and i don 't have to worry about what is in my well water. It gets UV treatment, but that's all. The water always tests fine.
The biggest reason we use the bottled water, is we have a water cooler with the hot water tap. So, when I want a cup of tea, its there and ready, rather than wait for water to boil.
Yeah, I'm lazy.......so what!!
S.