I have been running one for a few months now. Responsiveness and smoothness are much better than the tekin.

As for as durability. Your experience may vary. These are esc's and they do fail. I went with the orion/hobbywing cause personally i have seen more tekins fail/catch fire than any others, and even though through the military discount i could have had one for a low cost, I didnt want to risk it going out. That and the cool carbonfiber tape wrap on the orion.