Being really fast and accurate, with great cleaning products and techniques would be the best for any Detailing business..
Are you sure you want to get a lot of drops of water from a Tornador inside a vehicle interior? Now, you have to dry it all out, right ?
I personally use both great cleaning products and Steam for really dirty Leather, Cloth, and an Extractor, and sometimes Steam for Carpets and Mats.. But not so much that Im soaking the heck out things and then have to spend a lot of extra time extracting said moisture out..
You mention Mobile, so you have a generator, water tank, and are now acquiring a Steamer or Tornador ?
How many years have you been Detailing ?
Dan F