Ours was in for the same service/software update last week.
Due to a faulty A/C sensor it was in for 4 days. The update wouldn’t get past the A/C fault, so they had to wait for a new one.
I also explained about the 12V battery & keyless entry. The service guy made a note but offered no response, even though it had been in before for the same fault pre winter last year.
The following morning due to the cold snap the keyless entry failed again, however the last two mornings its worked. Although the pre heating wouldn’t activate as the car wouldn’t wake up after the cold night. So it seems the 12V issue is never going to be sorted, even though they must no about it. Every winter its the same.
Apart from these issues the car us great and would deffo be looking for the same, with the current offerings.