Not op, but ours is a Lelit Elizabeth dual boiler. Not cheap but I expect it to last like our Gaggia Espresso Deluxe did, about 15 years. I could've gotten away with a single boiler, truth be told but the ability to preinfuse (in a somewhat proper way) depends on it. Non negotiable was the PID temp control. Timed shots is nice to have.

But really I could've spent more on the grinder and less on the machine. The grinder I first got wasn't up to the task of espresso. Didn't have the range of settings and the grind quality was subpar. Had to get one a year later (grr) and settled on the Eureka Mignon Silencio. The flavor profile is so much clearer (this was obvious from the first shot I made with it) due to grind quality and it has stepless adjustment. So I can dial in the shot pretty well. Timed grind is nice too.

But damn what a lot of money for all this. Still worth it. It's not much over 10-15 y. And it pays for itself quickly. I can have an espresso drink every day that is far better than many places offer and it costs significantly less even for the super expensive, fancy beans.

Sage Barista Pro. Definitely an entry level machine, but I'm very happy with it... I'm not invested enough to go for a dual boiler or higher end machine quite yet - They start to get very big and very expensive very quickly, and I have limited space.

I have an ECM Classika. Though when I get a house I want to replace it with a Decent :x

I would say budget restaurant class?