The best base model automatic in Rancilio's lineup, the Classe 9 USB offers a full suite of barista-centric features in an attractive, stainless-clad package. The Classe 9 USB's big call outs from its Classe bretheren? Boiler insulation, a cold water mixing valve for temp controlled tea, stainless steel side panels, barista lights and chromed out group covers. You'll also get Rancilio's commercial heat exchanger design, a fully automatic control cluster (complete with backflush programming), and a screen that gives easy access to shot counts and other metrics.