I was honestly disturbed by the color of the dirty water tank. I mop my floors regularly, but this has shown me that my steam mop hasn't preformed as well as I thought. It was extremely easy to assemble. I had it running about 5 minutes after unboxing. I love that the clean water tank's cap also serves as a measuring cup for the cleaning solution. I was able to clean my kitchen, dining room, and living room with 2 clean water tanks. This machine really dries The floor too, and there is no residue left behind. I absolutely love it! There is no way that I can go back to a regular mop or steam mop.