I did (or a bit less pre price rise) and very pleased I did. In my previous Macan I didn't and wasn't concerned about the visual mismatch between the dash and the doors (as some on the forum are), however the full leather is a tactile delight, especially around the centre console area, as well as looking great.
At the end of the day it's another grand or so and we all have to draw a line somewhere. Best advice is to see if your OPC has a car with and without and see for yourself - that's what persuaded me in the end.