I loved this crawler so much I wrote an article about it on my blog (starlino dot com). One particular modification I made is a conversion to a larger scale by adding more frame parts. It handles well any terrain. The stock ESC runs without a problem using a 3S LiPo and it is waterproof ! I purchased and installed a rear steering kit for even tighter turns. Great for someone who wants to get into RC crawlers and learn something on the way!