Brandon's Semiconductor Simulator is designed to provide an educational platform for understanding semiconductor circuits at a granular level. Users comment on its effectiveness in demonstrating how circuit elements operate fundamentally, rather than just simulating their high-level functions. For instance, the simulator illustrates that in LC circuits, the actual inductance and capacitance arise from physical properties of materials, such as metal plates, rather than abstract components. Moreover, Sebastian Lague is highlighted for his engaging YouTube content related to semiconductor simulation which adds further value to this learning tool.