No, I find that I am nowhere near as accurate as i am with the mouse and keyboard even for flying i preufre mouse and keyboard. I only use the controller to stream xbone games to the pc and i hate it, I wish i could use the mouse and keyboard.
it really depends on the game. Any racing game i will play with a controller as you rally just cant play them with a mouse and keyboard. I tend to use a controller when playing gta5 too as it just feels right for the game.