We heard about the walking tours as we were staying at Pod 39, where the tours are offered free to hotel guests. We went on Tuesdays tour with Dan, and Fridays tour with Andy. Unfortunately, the snow storm saw Thursdays tour to Brooklyn cancelled, otherwise we would have done that as well.
I have been to NYC many time however, I experienced areas I have never seen with the walking tours. The guides are extremely knowledgable, and easy to ask questions from. It was like walking with a group of friends, chatting along the way.
I would totally recommend these guys, and now that I know about them, the next time I'm in NYC I will definitely pre book some extra time with them.
Now that I'm back home I'm telling everyone about the tours, as absolutely fantastic !!