If it overheats it can ruin your car with unpredicable beavior and in my case after a few scares i opened the esc and filled the heating parts with thermal paste of cpu and added an aluminium fan to better dissipate heat, and now works barelly warm with 4.5t brushless with any abuse !
But originally had problems with heat, now its very reliable and summer in portugal gets very hot!
Random motor cogging, irregular power bursts on power. Other issues I've heard from others, random reversing in race mode. Nicely built esc but overpriced. Performs like a sub $40 esc. Never buying a toro again. Upsetting to say the least.