ADverts indicated cleaning patio. I have a karcher but it's heavy and awkward so I thoughjt Worx would be better to use. It does clean the patio but will only do that if I use the smallest jet....It still has to be held very much longer than the Karcher to clean a very very small area. I estimate I would need to use both batteries to clean 2 or 3 slabs and would take all day. I am hoping that once I've cleaned the patio with the Karcher I will be able to do it with the WORX easily and quickly if I do it every few weeks. I am confident it will work perfecly for the cars so I am quite happy with the product for that.