my touchless gets cars very clean. I'm consistently impressed with my wash quality and I'm on site six days a week operating a used car lot and a detailing shop so I keep my eye on car quality. I have a couple of competitors that have soft touch washes. One of them is poorly maintained. The other one is OK, but I went through it with one of my cars and it felt a little too "grabby", meaning it felt like it was maybe too close to the car and it wasn't that gentle flicking sensation i'm used to on friction washes.
i grew up washing cars by hand; thousands of them, so i know how well friction cleans a car. but the touchless cleans so well that i don't even think about friction. Heck I barely even brush wash my personal cars now. I keep them clean enough so that I do a touch free process in the self serve bay and just towel dry afterwards and they look great.