We use it both with shampoo & encap. Great for Office chairs, hook up to pepsi sprayer. Go down a lineup of chairs. Follow up with Desiderio With Vac & Steam after you finish the cleaning, again in a line. Good production times. We sell the process as cleaning & sanitizing, thus the steam.
Have had the Makita for a couple of years..it's heavier and a little more awkward than the US Products drill setup. It does great when I'm buffing my van, tho.