Pros: Servo is fast, fairly high torque and inexpensive! Very good for the value. Used it on a 1/10 Electric touring car as a steering servo and my steering response has improved a lot! Upgraded from a Futaba S3003.
Cons: Seems like there is some EMC noise from the servo motor. Problem with servo returning back to neutral, sometimes the servo would be off by 1 degree (only occur after turning one direction?).
Would highly recommend this for the budget racer or looking for a cheap and fast servo.