I'm not a brushless fan, having tried it 12 months ago, unable to get used to the feel, and given it up. However, in my class (12th Scale) it has become impossible to keep up with brushed, so I've gone into it again
The latest breed of speedos and motors are far less intimidating. Although it's only a 6.5, the car is ballistic, and the motor is much more driveable. In 12th we don't use brakes, so the biggest thing to get used to is NOT feathering the throttle into a bend. Drag brakes only work with the throttle at neutral, so learning to come right off it, and let the car flow into the corner, is the hardest thing to do.
I go with milder motors geared to the top speed needed, and don't be frightened to adjust the timing to find a sweeter motor, too. Hot winds need too fine a throttle control for me, and what's the point in having all those horses, and no chance to use them?!! HTH