This wagner 905 steamer is one of the BEST appliances I have EVER purchased. I have travertine tile throughout my house and it not honed, therefore dirt gets in the little holes easily. I love the look of it but I could not get some spots as clean as I wanted. I used the steamer's small brush and it has made such a difference, it is hard to believe. It takes a bit of time but steams so clean that is wonderful. THEN I thought people were exaggerating when they said they got spots off the sliding glass doors. I can tell you that I have used lots of cleaners on my sliders and never got all the mineral spots off. I used the Steamer...drag it slowly over the window/slider; I had to go over the sliders 3 times but the mineral spots came OFF!. It is a wonderful little appliance to have!!!