I have a friend whose father bought a GTR a couple of weeks ago. I was over at the weekend and he took me for a ride. Riding around normally it town it felt like any other car (from the passenger seat at least, where I was...). With the suspension on comfort it felt similar in stiffness and damping to a 350Z. On a bumpier road you can easily notice the ride firming up with each step of stiffening the damping. For average riding around on the street I'd definitely leave it on comfort.
Cruising around, the gearshifts were in-perceptible apart from the change in rpm. The sound of the engine was not particularly inspiring at lower rpms. In fact, cruising around there was nothing particular exciting about the car at all, from the passenger seat. The only thing that really interested me was experiencing the performance. There are some cars that it's awesome just to be riding along in, regardless of whether we went quickly, but this wasn't one of them for me. Cruising around at lower speeds I'd have more fun in my Miata.
Once we found an open road he opened it up a bit. Didn't use the launch control unfortunately, but still took off and got us up to 220 or 230km/h. He was short shifting a bit, changing up at about 6000rpm (although I think peak power is only 6500ish), and also my two buddies were in the back seats weighing us down a bit. The acceleration was still impressive, but I wasn't blown away... I'm sure with just one person in a well broken in car, using the launch control it would be a different story. I guess it doesn't help that I'm used to riding motorbikes. After the acceleration run, he hit the brakes, and they were impressive. Most impressive thing about them though is that they're 15 inches on the front, same as an enzo, and an inch larger than the stock wheels that came on my miata, haha.
As for cornering... well unfortunately with the roads we were on, I didn't get much of a chance to experience what is undoubtably the most impressive part of this car. The acceleration alone, well to be honest there are many cars out there with similar performance... but I'm sure combining it's acceleration and braking with it's handling it would be a hugely impressive car.
Stepping out of it, I really got the feeling that if it didn't accelerate quickly and corner well and have all the tech stuff, it would not be much of a fun car. To me it's definitely the numbers that makes this car what it is. That's not to take anything away from what they've achieved, but it's definitely not a car I'd just sit and stare at in the drive way, or go for a drive in just to hear the sound, or just because it's such an awesome place to sit. I'd go for a drive in it just to use some of its performance, because that's its party piece.
One nice thing about this though... in this colour especially, it's not a cop magnet. If you want to ride around unnoticed and without making too much noise, you can.