Love that I can vacuum and mop at the same time- seriously- can you believe they thought of that? I'm in love with this machine and I like the smell of the Bissell scented discs. I only use 1/2 for my whole apartment and it's perfect. I always used distilled water from the jug. -you can pick that up at any supermarket or pharmacy. Our water is too hard in Long Island to risk calcification in my beloved machine!