The advantage of the brushless motor controller

Brushless motor controller compared with motor controller, the advantage in where? Below small make up said. 1. Low interference caused by: because won't produce electric spark when running, so reduce the edm brings to the remote radio interference. 2. Low noise, less friction during operation, smooth running, and running makes the noise is small. 3. Long life, low maintenance cost: wear mainly concentrated on the bearing. Through mechanical point of view, it is almost a maintenance-free motor, only need to do some cleaning maintenance work. To sum up, compared with the motor controller, the advantage of the brushless motor controller you understand?