Myself and my partner were in the US on a 2 week vacation from Ireland and took this tour on our second last night. It's was really interesting and fun, our guide Lindsey was fantastic. She was very engaging and knowledgeable and made it a great experience. We got to try some great beers that we might have otherwise missed out on and we were offered some interesting and different perspectives on some historical figures and events.
I'd highly recommend the Boston crawling independence tour.