Maybe it was all tour guide, but at the end of trip, our group (8 of us) didn't feel it was a good…read moreuse of our time and kind of wish we had just gone exploring on our own. I guess it really depend on the guide, as I've been on these type of "free" tours where we learned a lot about the city and greatly enhanced the rest of our stay with local tips about restaurants etc.
For this tour, it started out fine, the guide talked to us about the unique architecture of the houses and how they can become tilted. Unfortunately afterwards it was mostly just a lot of walking, and as it was a big group (the company had split the participants into several groups already, but it was still a good-sized group that formed a long line on the narrow streets), the few closer to the tour guide may have gotten a lot more out of the experience as they chat with the guide along the way, but the rest of us felt excluded. The little info we got was mostly history with a dry presentation.
Early in the trip, I have asked the guide about something, and she said she'd explained more about that later. Towards the end of the trip, I mentioned to another traveler that I never did find out more about that something, and the lady said, oh, the guide did talk about it. I was a bit bummed to have missed it, and also felt that a more attentive guide would have sought to include me in that part of the talk.
As said I've enjoyed many of this type of tours, so when we visited Amsterdam we did a bit of research and signed up for this one due to its good rating. Unfortunately the experience didn't live up to our expectation.