Martin guitars are regarded as great guitars; their Martin factory tour is great too! It starts in their very clean and modern Visitors' Center, where we were invited to browse the gift shop, exhibits or play selected Martin guitars while we waited for our free tour to begin.
All tour participants were given headphones to wear since we would be going through loud manufacturing areas; we all could adjust the volume of our tour guide's voice accordingly!. Our tour guide was friendly and knowledgeable- giving our group ample time to observe the various areas and politely answer our questions.
The ~one hour ended back in the Visitors' Center. My wife- and even my teenage son- agreed that this was one of the best tours that we have ever taken!