I have been using Elecrow since the very first time I made a PCB. Lynn has been my account manager since then and has always been very kind, reliable, and helpful. When there were potential issues with my PCB design or components, Lynn provided friendly advice and always answered my questions promptly. Lynn also flexibly accommodates my irregular requests, which is a great help. Above all, communication is always smooth and easy. I have already started small-scale mass production, and I believe Elecrow is perfect for both DIY projects and mass production. Thank you so much, Lynn, for the continuous, reliable support.