They're very good esc's. I run one in my 4wd shortcourse. Tons of adjustability and handles pretty much any motor you'd want to run. The one downside to them is, depending on what servo you use, they can glitch. All you need to do is add an external bec and all the problems go away. The hobbywing sct-pro is a good esc as well, just less adjustability and you can only run up to 4s. The hobbywing v2 and v3 series of esc's are very good as well, and have the adjustability the sct-pro lacks.