I took two free tours from this tour group on the same day!
For those who are new to Hong Kong: I took the intro to Hong Kong walking tour and had a lot of fun! Summer was very knowledgeable about the area, history, and religious/spiritual aspects of the city. She made sure that nobody got left behind and that we were all in the shade on that hot day. I went in knowing almost nothing about Hong Kong and came out with exactly what I was promised, a brief introduction. We also got a chance to try an egg tart and they were yummy. I highly recommend this tour.
For window shoppers: I took the Kowloon Markets tour and LOVED it. It was pretty cool to see that if you want something specific, you can go to a specific area and find LOTS of options. I got to see lots of pretty flowers, cute animals, nerd/anime stuff, tech among a few other specialized markets. Andy, the tour guide, knew exactly where we were going, made sure to keep everyone together in the tight markets, and answered the many general Hong Kong questions that I had. Highly recommend.
Hong Kong Free Tours made sure that I had a really fun day layover in the city, and I recommend it if you are looking for something to do for a couple of hours.