OK, so I've completely confused myself looking at online reviews.

What have you got, is it any good and does anyone have a Wertheim?

I'd really like a Karcher steam cleaning 'system' but can't justify the $800 when really all I need is the mop.

I've got a big living area, hallway and two tiled bathrooms so it needs to be able to do a large area, preferably without refilling.