Humor is debatable, but his jokes were rather cynical. The first one, two, three jokes about church/religion were okay, but then it seemed just uncreative, frustrated and even cynical. He seemed to use every option to make a ,joke‘ about christian church, which at one point was just boring. Most anecdotes were not even filled with information, it was more a style of ,look at that sign at the church, it cannot be a coincidence, bla bla‘ and no information followed. I mean, jokes are okay, but then fill your jokes with interesting information about history etc. Nuno could not even provide dates or hard facts about Porto. I really doubt his historical knowledge, as I already joined so many walking tours (even one in Porto, years ago) that were much more informative and even funny. All in all, and I’m sorry to say, not a recommended tour.