Just downloaded this from App Store last night. It was 1/2 price sao I could not resist getting it.
I have barely played it, except for setting it up and doing some of the tutorials.
The graphic and audio are great on my iMac (late 2012 with 2.9 GHz Core i5, 8 GB Ram ).
I have an old Macally iShockX gamepad that I plugged into the iMac. To my surprise, it downloaded or updated it's drivers. F1 2013 recognized it and configured the pads and buttons for the game. So far, it works fine except for lack of vibrations?
My ratings are preliminary since I haredly have used the game.