Used these for a couple years now...
"I've used esc for at least two years now and I've had only a couple failures. I have stacks of other brands but only a couple of these. I have for 3 5" freestyle quads that I fly on a regular basis and while I've burned up a couple motors, I've only damaged one esc within the last year of flying - and I fly almost every day. Be sure to tune your timing on your motors, though. I find the default value makes my Xing 2207 1800KV motors run a little hot and increased the risk of burning winding of the motors in a crash."


