I was a "pad only" cleaner for 6 years. People loved the work I did, and I have plenty of repeat biz ;and referrals to show for it.
I recently added high-flow extraction to my tool chest.
People love me even better now. And I use both systems.
So there ARE other factors which determine success in this or any other biz besides what method you use. Like enthusiasm, confidence, professionalism
, ability to listen and communicate with the customer, talking to and getting to know the customer (making them "like" you)...etc.
And it helps that there are so many shitty cleaners here, who don't know how to talk professionally on the phone.