My old machine: I've replaced the shower screen,all bolts, most gaskets, cleaned internals of boiler, bought new shower screen plate and all bolts,new steam arm rancilio silvia and a light attached on the water reservoir allows you to see your shot better in dark areas. It's a really good training tool along with the bottomless portafilter which is the best thing ever. ALong with of course the newest addition a PID from auber instruments and a 25A SSR both with project boxes.