If you think you have been making a mean cuppa using your machine, think again. What was a good cup before, is now a professional brew. Well worth it if you are trying to hone your skills as a barista. It was good to get some of the theory in from the plant, to the brew. Understanding what is happening with your machine and the beans helped me to understand the process better and seeing how to create an arty tulip from the frothed milk has also showed me what I was doing wrong. Certainly something to experience.