I am in the same boat. This is the last time it goes to the watchmaker. Movement has to be fully disassembled, cleaned, checked and it is a £200 bill.
I won’t buy another one until this movement is upgraded. I don’t mind the rotor to be honest. As you perfectly said above, it is the keyless and the fragility which are concerning.
Edit: and as far as I know, individual parts are still not available for this movement? The question is why?
Reps are all about patience!
(yes 67-02, I am looking at you but you aren’t ready for me
)