MediumRoastSteam I am sure that there are hundred of ways to make espresso. Italian is the master at their way of making espresso. They have been doing this longer than anyone. I have never seen Italian barista use the scale, RDT or WDT either and they serve million of espresso yearly.
If ACS as a company does not have longer track record, I would be order Nurri Leva SA. That is another sweet looking lever machine.