The second revision of my Intelligrow PCB, manufactured by NextPCB, is simply perfect. It is a 4-layer stackup (top, 3V3, GND, bottom) and was designed to be sitted under an Intelligent LCD panel. The build quality is excellent, the silkscreen marking is crisp clear, and the PCBs arrived in less than 3 days :) I would highyl recommend NextPCB for your next PCB order!!