Buy recommendation for Jura Z9, J9.n?

Hi everyone!
I'm new here. For nine years we have had a Jura F50 in our 2-person household. Although she's still on duty, we're looking for a new machine. It should also become a Jura with which the operation should be more comfortable and with the possibility to produce latte macchiato and cappuccino without much additional effort.
According to my information the Z9 and the J9.4 One Touch TFT as well as the J9.3 One Touch TFT are technically almost identical, but unfortunately also very expensive. Maybe the J9.2?

Which could you recommend? It should also be quiet and technically mature. With our F50 we had our problems in the beginning. But after the 3rd maintenance and repair it runs stable.

What functions and technical details do you consider indispensable? Although only 2-person household, we also think of guests when purchasing. I.e. the preparation of a cup should not take a little eternity.