I made the mistake of putting the clean water in the dirty water container, but after fixing that this little machine was super easy to use. I was able to clean my couch, then immediately clean the grout in my kitchen floor. It took out stains of who knows what (mom of three with one dog) on the couch while removing most of the dog hair. It did an AMAZING job on my grout - I'm going to tackle the bathroom next My only "complaint" is that I wish the nozzle had longer tubing. It's not really a deal breaker though, you just have to move the machine a little more than Is ideal (this was a sort of issue only while cleaning my couch) Thank you to Stellar Product Testing Panel for gifting me this product in exchange for my honest review