My 16 year old daughter and I did the tour with Takeshi, which turned out to be a private tour. I was born and lived in Japan till i was 13, so do have some familiarity with Tokyo, but a learned a lot of things about downtown Tokyo (this is the traditional downtown area of Tokyo, near the Skytree).
We did a tour with another operator in Tokyo, which was also a good tour, but we definitely thought the route of this tour was better. The itinerary is very well thought through, and is just the right distance and time for a half day bike trip. It is not strenuous by any means (ground is flat), and a combination of interesting stops at temples, shrines, shops, places to take photo spots. The sakura-mochi (mochi wrapped in cherry leaves) store was a cool place to learn about the store that's been around since Edo period making one item. Takeshi is also fluent in English, and was very careful and thoughtful in his guiding. Would highly recommend as a half day activity, and you can probably combine it with a longer stop at one of shitamachi attractions.