I don't know about that stupid saladbowl of a tool...
I was was holding it in my hand at connections and was thinking there is noooooo way you can clean an armchair with that thing. You can't get to the edges and piping! Why would you carry two upholstery tool to clean one upholstery?!?
It could only work if you did a job like we did- I think it was 5-6000 chairs- one guy would clean flat surfaces and another doing edges.