In the Philippines, I trust only two luthiers: Arie Hipolito and Mike Sison. For regular set-ups, installation of electronics and other minor to moderate jobs, Mike is the guy for me. I go to Arie for more intensive guitar work such as routing of new cavities for extra electronics, full re-fret, repair of cracked neck, etc.
I've tried other luthiers but frankly, their workmanship was underwhelming. I hope they've already improved by now, though.