Its definitely very comfortable at high speed and makes you confident. Coming out of apex's you can go full throttle and the rear still comes out on you a bit but its predictable and very consistant. You always know how the car will react, there's not many surprises. It even started to sprinkle (light rain) towards the end and I was still pushing hard, the car is so well behaved on the track and makes you just go faster and faster and takes everything you throw at it.
At Sebring I was unfamiliar with the track and there were race cars running with me (my very first run comming out of the pits I merged and had a Porsche GT3 cup car breathing down my neck and a F430 challenge car later) so I was thrown in quick. Down the straight I passed everyone but in the corners me being unfamiliar I had people go past me while learning the layout. A lot of areas run really really wide so finding your line is harder than other tracks with a narrow road clearly paved for you.
After my runs I rode with my instructor in his stock '13 GTR with modified suspension and brakes. Unbelievable to see what the car is capable of in the hands of a professional. My head felt like a bowling ball on a stick from pulling so many G's. The car was glued to the road. I found a whole new respect for the car after tracking it.
Next event I'll have a GoPro. I'm going to do Sebring again and probably Daytona road course. Eventually in the future I want to run at Road Atlanta.