I recently bought the bigger 8L Berkefeld for myself and family, and have been so impressed that I bought the 6L for my sister. I was spending at least £80 a month on bottled water because the tap water was undrinkable. The chlorine level has got so high you could smell the bleachiness just by turning on the tap. That, and the worry of what else was lurking in the tap water made me decide to get this filtration/purifying system. I'm back to using tap water, but now drinking it with confidence. Great super clean taste, no smell of chlorine, and £80 a month better off,plus no more tons of plastic bottles to dispose of. Great stuff!