Does anyone happen to have one of these? I have marble floors in my apartment which aren't nearly as easy to keep clean as promised by the real estate agent. Mopping is gross, I feel like I am mostly just spreading dirty water around. This apparently puts down cleaning agent from one container and sucks up the dirty water from the floor into another which sounds like it would get the floors super clean. I've been looking at the iRobot Scooba which promises to do the same thing but it's a lot smaller and robotic and expensive and I really don't mind running a machine thing over it, I just want to only put down clean water floor cleaner and suck it up, not mostly push around dirty water.