When working with my Barista Express making milk drinks, I found it a bit of a hassle waiting for the steam nozzle to come up to pressure. With my Elizabeth it is always ready. That is just satisfying. And the steam power is robust also. You will live with this machine a long time. The single boiler machines have a number of significant advantages, particularly on the cost and maintenance side. But ultimately since I make milk drinks, having the steam at the ready, and powerful, was worth the additional expense and possible descaling issues going forward. Time will tell. I have had the machine for 6 months, and I just love it.