What are they like to live, day to day? Does the ride quality ever get boring? From what I've heard it sounds very hard.
The ride quality is fine to be honest, unless the roads where you live are really terrible, i.e. pot hole filled or incredibly bumpy like of the northern meets we do, a GTR simply can't put its power down in such technical bumpy roads, neither can the 911. Such roads need a much softer setup car or something like an EVO or Impreza or a stock Boxster/911. Lowered cars with stiff suspensions prefer less bumpy roads for sure, my EVO was the best all round car by far as no matter what the road condition was or the weather you could use its power.
But on normal roads, town driving, they are fine in my view on comfort mode, yes the MY11 was an improvement but I found the car fine.
If anything the biggest issue with the GTR on the road is its size, on a more narrow line you have to hold back a lot as if you meet something wide coming the other way its going to be a very scary moment.
The ride quality for me in an 09 was never an issue, fuel consumption on the other hands, it is very easy to see single digit figures on a blast out in a GTR.