We mainly used this tour to simply avoid the incredibly long line ups. The guide was friendly, knowledgeable, and easy to find. If you don't really care about the history portion of the Eiffel tower I would probably recommend something else (cheaper).
Our guide took us to all the relevant spots, and explained everything as we went. Very friendly and willing to answer any questions. For any/all Canadians out there that want to see some history I would highly recommend this. Visiting the cemetery and reading the gravestones really makes you realize the gravity and effect WWII had on Canada and the people that gave up their lives for us. That alone is worth taking the time to go on this tour.
London, United Kingdom
Overall a really enjoyable experience. Our guide was a "bit over the top" for my liking, but it appeared other people in the tour enjoyed him. I preferred the driver (who was also very knowledgeable and a lot easier to take). Bath was a bit of a disappointment - not much to see there, and mainly a tourist town built for the museum. Lacock was absolutely gorgeous. Stonehenge... well... it's Stonehenge. Until you see it in person you won't be able to fully appreciate the size and beauty of it. Being able to actually walk inside the ring and amongst the stones was well worth the extra price; I was told that this is an uncommon thing as they closed it off. If you are taking the time to travel to see this monolith, spend the extra money to be able to walk inside the roped off area!
Excellent guide, just not a whole lot to see here. If you have some extra time to spend in the city then definitely go on this tour, otherwise I would skip it. I'm probably spoiled having visited Auschwitz in the past, but this trip we took the parents and they wanted to check out some Nazi/Cold War historical sites. The tour was a total of 6 hours (1 hours travelling). You could have easily cut the tour down by 1-2 hours and still have seen everything in this place with time to spare.