The rare dual boiler under two grand that doesn't ask you to choose between workflow and counter space, with programmable preinfusion and a genuinely tunable PID that enthusiasts actually use. The stock steam knob is laughably cheap (plan to replace it), the 15-20 minute warm-up tests your patience, and the looks won't win design awards, but once stable it pulls shots and steams milk simultaneously without complaint or compromise. Buy it if you want real temperature control and dual-boiler capability in a compact footprint; walk if you need E61 aesthetics or can't wait a quarter-hour for your first shot.
This German-built heat exchanger pulls shots that rival commercial machines, with PID temperature control that eliminates the cooling flushes other E61 machines require. The catch is a known recurring flaw: the Solid State Relay fails predictably after two years of daily use, a $35 part that requires technical skill or a service call to replace, and the PID tuning forces a choice between proper brew temperature and strong steam pressure. Buy it if you're making one or two drinks daily and don't mind scheduled maintenance for exceptional espresso quality, but skip it if you need worry-free operation or fast milk drink production.