Amazing, love it, although, as it said it will start in low shaders, for some reason, I still had Max Shaders on, not really something important, but just to tell you...
I BARELY lose some FPS, I like am around 55 FPS, I usually hit 60, nice job.
EDIT: My PC was probably getting used to it, I have 60 FPS again, and driving, boosts the FPS for some reason...