I use mine for insane speed runs. TC3, Medusa 3300kv, 5s Lipo, 41/60 gearing.
ESC doesn't even break a sweat. With a setup this reliable I can run a full 5000mah pack and not worry about it. I have a beta testor so I have had mine awhile. I have several hours in this controller with this setup, among others, I am very pleased and I think this is by far the best ESC on the market.