The build quality is really outstanding for this product. Quality components are surely found here. The ESC performs very well, runs smooth and never gets hot. This ESC makes my motor run very smooth and powerful. Use this ESC with the YeahRacing hacktronic brushless motors to have access to turbo mode. I am very pleased with this ESC and would buy it again. I am using this with the 5.5 Hacktronic motor in my Tamiya TA02 and the thing rips! Great for high speed running!