I bought the version of Steam and honestly did not like, I thought there was no optimization or improvement compared to its predecessor Flight Simulator X, which in my opinion is still better.
The Dovetail says he made ??the port of FSX engine 32bit to 64bit.
I have the stick HOTAS Saitek X -55 and I could not configure customizable way the controls of acceleration and dead zones axes.
I found the very poor graphics, which give the impression we are still in 1998, do not know why they do not like the engine of Rockstar for example, where cities are well detailed both flying at 3000 meters altitude as walking the streets, and with an indescribable performance.
I think Dovetail still has much to learn in the development of flight simulators...