I have to say....
YES, they look cool
YES, mine operates great. Fast, strong and smooth.
YES x 2 Noisy as Ive ever heard. Drives me nuts! Its whining when ever the trucks on. Im still learning a little so...Does that strain my RX, ESC or battery? The servo's case doesnt get warm or anything. But I havent had a servo thats quite that noisy. My JR 9000t is a little till I touch the steering wheel and its centered then it quits. But the Savox is darn near constant.