Agreed. I've never had a siphon tube look roughly red like that. They're either black with oxidation or pink, smooth copper

Micra would be top of my personal list. I had one on loan from La Marzocco for review and used it with a Timemore Black Mirror scale and my usual Not Neutral Lino espresso cups without issue. The Mini R may have some advantages in its new prebrew system which are worth looking into. If truly advantageous, that would be

Great - thanks