We took both of these tours. Craig was our guide on each. Our groups were around 15-20 ppl. Craig is an amazing tour guide, packed full of information and knowledge about the history of the city, beer, the neighborhood, very entertaining too. If you want more history and less beer, the underground tour is great. If you want more beer with a pinch of history, the brew bus is where it's at. Going to go on some of their other tours in the future. Side note : during the tours on a few occasions, our tour guide went out of his way to help a homeless lady find her way to the soup kitchen, and another time when it was 100 + outside he gave a man 2 bottles of cold water. I was impressed by the kindness and caring that he had to help these people, even while on the job.