I just did a full DIY rebuild on my Jura ENA 3, piston o-rings, calibration, lubrication. It was a lot. Jura’s modular design makes longevity on these machines somewhat predictable, with a little elbow grease. I thought this machine was dead, but here it is - in all its glory, still putting out perfect crema, delicious extraction. It’s a compact little unit, though single hopper limits multi-roast functionality, and in our household, that would be so useful.