Havnt used one so cant comment on its performance.
As to looks - at the end of the day the customer doesnt care what the machine looks like, all they are interested in is their carpets being clean, dry without shrinkage and getting the c/cleaner out of the way.
I have what many consider to be a ugly machine but no one has said "thats an ugly machine" but plenty have said "thats a good job you done, heres something extra.".