Its very easy to control and easy to evade on coming attacks, but the attacks follow you to far and are very fast. 1-0 are your hot key attacks. In dragon form F2 selects all your units and F3 selects the units near your dragon and Q is the attack command. I haven't had an issue with the controls at all the only issue i've had is balancing dragon form and the RTS because you can't build units while in Dragon form.
If you get it add me to your Steam my username is Aegeta.
You can actually build in dragom form there are hotkeys at the bottom right and i think there is an achievement if you do build in dragon mode.