The MaraX is the heat exchanger machine that finally solves the cooling flush problem, its PID-controlled system lets you pull a shot and steam milk back-to-back without the ritual purge that plagues traditional HX designs. That workflow advantage made V1 owners loyal for half a decade, but V2 models leak: the drip tray purge spout overshoots, water pools inside the chassis, and at 16 to 18 months you find puddles under the machine or steam wand failures from scaled sensors. Buy a used V1 if you can find one, or wait for V3 field reports to confirm Lelit fixed the plumbing; skip V2 unless you're comfortable with warranty claims or DIY solenoid cleanings.
This E61 heat exchanger machine is built like a tank and rewards patience with decades of service, owners routinely running the same unit for 10-20 years. The catch is thermal management: you'll flush between steaming and brewing, wait for recovery between back-to-back milk drinks, and on older models, electrical components near the boiler fail from heat exposure, control boards and wiring giving out after years of cooking themselves. Some owners also report a persistent water smell that never fully resolves. Buy it if you make 2-4 drinks daily, value hands-on control, and have repair access when those electrical gremlins surface. Walk if you need cafe-volume output or want automation over craft.