I specifically looked for this place near the Old North Church, and glad to find it since it was over 90 degrees and we had been walking in the heat for about 15 minutes. Based on the other reviews posted, I was disappointed since I did not hear an enthusiastic tour guide so I don't think it was Gary; just a "here's the facts" sort of guy (looked younger than what was posted on TA by others). I don't think the guy smiled the entire time, as we asked a few questions. Maybe it was the heat, the costume, who knows...next door, the lady explaining the chocolate process was much more inspiring to hear. We tasted chocolate sample (no milk so a bit bitter), smelled spices and crushed cocao beans. And who knew that the chocolate bean can be considered a fruit? I think the donation when you walk in, suggested $2 per person.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.