I keep hearing the same stories over and over again. People who are loving their Hobbywing system while at the same time being dissapointed with Castle. I have had a couple 25amp Hobbywing ESCs in an RC18T that eventually burnt up after pushing them too hard but for "normal" running they are great. Them Mamba Micro Pro was a much better system but it should be for 3 times the price, But I couldn't kill it and I pushed it hard! The 80amp XERUN is the only other Hobywing system I have had experience with yet and I am happy with it. But I don't plan to push this one beyond its limits. I'm looking forward to seeing how this 150amp XERUN compares to the Mamba Monsters I have fried! It WILL be pushed to its limit!