This PCB was manufactured by ELECROW for my DC-DC switching power supply project based on the LM2578 controller, designed for up to 3A output current. The board quality met my expectations. The PCB finishing is clean and precise, with accurate drilling, good solder mask alignment, and clear silkscreen. Pads and copper layers are well defined, which makes assembly comfortable, even for power components and larger inductors. I am satisfied with both the manufacturing quality and the order processing time. Production and shipping were handled efficiently and without any issues. Overall, it was a very positive experience. I will definitely order more PCBs for my future projects.