In several words, it is a Photoshop panel that allows you to have brush and tool presets, actions and scripts on it.
In further detail, Brusherator is a system of several panels and scripts that will allow you to work with high efficency and speed. It’s not a brush manager for you instruments that will spit all the tools you have to you, but rather like a highly customizable surgeon table when you have all the tools you need for particular task in the right places.
And you can have several tables for different tasks.
And also you can switch between them in a press of the button.