[dgacmu]

Which one manufacturer do you have in mind?

Perhaps you're thinking of the commercial market and I'm thinking of consumer, but there's been a lot of really interesting developments in the last few years at the intersection of affordable and high quality output -- I own a plus Bambino plus now, for example, which is simply a delightful machine, though I too wish I could modify the firmware.

[drrotmos]

Gicar. If you're looking at home machines from manufacturers that also do commercial (e.g. Profitec, ECM, Lelit, Rancilio, La Marzocco etc), they almost exclusively use Gicar electronics.