We rode the whole trip once and it was interesting and a quick way to get the lay of the land, but the guide was a bit snarky. The second time, we hopped on and off, and the driver was heading to a break, and not too informative. Our third guy, however, deserves more than 5 stars. This was Tom Collins. He was funny, informative, warm, and an all-around great tour guide. We rode on his last trip of the day, after having walked all over the city and seeing everything. We just wanted to get our money’s worth, and we did. Tom Collins was a great end to our day in Boston!