I have real hardwood floors that are uneven in spots. I really did not expect it to be able to pull up the water well from an uneven surface but I swear it did! The brushes scrubbed up dried cereal, dried Indian clay mud and sticky spots on most all first passes. Only the cereal took twice! It sprayed a decent amount of water solution for cleaning (forward) and it was completely and totally dry on 95% of the floor surface after the backward/sucking function (would've been 100% if not for my uneven floor). I was shocked at how well it did. The water containers were easy to fill and easy to pull off and on! Awesome machine, threw away my mop and bucket!!