With the Alex Duetto IV Plus, Izzo has outdone itself and brought to market a real powerhouse when it comes to dual boiler espresso machines. This machine is capable of handling multiple drinks right in a row thanks to its quick recovery time, large boilers, and heavy-duty heating elements. The Duetto IV comes standard with a dual PID, shot timer, and a raised E61 group, making it easier to slide larger cups beneath the group head. Making lattes and cappuccinos with the Duetto IV is an absolute delight.