Experiences with workshops – Help ask!!

( …vorpost, the story is a little longer and follows the same!) as my title reveals, I or my colleague are looking for a “reliable” SAAB workshop in southern Germany. After countless beer bottles in workshops and experts who have no idea and always only want to change control parts, I don’t want to look every morning at work in a bitter face. Please help me!! Where is a GOOD SAAB workshop?