After Feb 2015 is going to get you the least amount of TSB's. (brakes, heat shield, fuel leaks, etc) The panel gap problems have gotten better, but not perfect.
Brake TSB only affects EB PP and non-PP GTs, so that doesn't matter otherwise. Use your eyeballs for panel gaps. My October car is perfect, some others are not. If you are in front of the car, the date doesn't matter much.