The best value depends on your board design, assembly requirement, assembly qty, etc.
As a standard, we provide SMT/PTH first article inspection, AOI inspection, and FQA inspection. We certify to IPC-610 class 2 or 3, J-STD-001, RoHS or non-RoHS for assembly.
For testing, we perform assembled board power to ground check in the absence of customer test requirement.