I had a Savox 1268 steering servo and 1267 throttle servo fail on me at the Neo after a couple of practice runs, I replaced them with AE XP 1015 (same as the ACE) and they stood up fine. The steering servo failed on a normal landing, the gears were fine but the motor seized solid.
I've not had any problems with the Savox servo's in my 10th cars mind