Hi Matt
The box is really nice, was stuck in a load of traffic on M25 and it was no problem to drive, once had a chance to open up very smooth, could be a little quicker on the paddles but no real issue. They do say that the fly by wire upgrade makes it alot more responsive.
With regards to the difference between GT an GTS, chalk and cheese but would depend on what you have driven before, if you have had a performance car or you drove one after another you would really notice the lack of power and soggy breaks. If performance is not a major consideration the GT is a very nice comfortable car and considerably cheaper than the S model.
so ultimately it would depend on what you want from your car and budget
Jay
I would say the the GTS is what the car should have been at the start.