There are two machines we are comparing and both have different extraction processes which enhance their performance in different ways. The Breville Dual Boiler on the other hand, employs a newer saturated group which features dual PIDs and heating components that enable it a precision of about plus or minus one degree Celsius and a temperature range for brewing between 86 degrees Celsius and 96 degrees Celsius. It also comes with automatic pre-infusion capability, an option that ensures consistency and flexibility in the process. The Rocket Appartamento has the E61 group head which is a mechanically pre-infused stylish design famed for having a large thermal mass for stable temperatures but this does not have the options from the Breville. Technically, the Appartmento may not be as competent as the Breville, although the Appartamento gives one a fantastic sophisticated experience that is more hand’s on which they feel is simpler and more fun.