I have had the same servos for two years now . Air. 94359 and a 94362 That I use every weekend ,not one problem .I also use the same type in my truggy not one problem. Im not saying that they are he best, however this is my experience with them .I don't see any reason to change yet.I would say they are a little more $$$ than the others though ,however two years without fail ... I'm o.k. with that