It did not work right out of the box. Shampoo dilutes with water. Shampoo and rinse knob struck. Dogs did not like water hitting them from all sides. All in all, a dismal failure. I am heading back to Walmart to get my money back. Total piece of crap. I gave it a one star only because the site would not allow a zero.
Bottom Line: No, I would not recommend this to a friend