Selling coffee machine is challenging because so often when you field questions from customers you are talking to really well educated shoppers. Breville was a case in point. I went to Breville website and read their product reviews by wonky customers.
With Nespresso, I loved Vertuoline when it came out and wanted to tell customers about it in the simplest form. I developed a selling code CTFRT to explain the wonders of Centrifusion. The code on capsules tells the machine Cup size, Temperature, Flow, Rotation (speed),and Time (that the grounds are to be in contact with water). Had really great success with it.