This was my first time using Viator and my first trip to Paris. The tour was well worth the price. The guide was extremely knowlegable, the group was only 4 people (if we had been 8 it would have been a bit crowded). We saw more in one day than my French colleagues have seen in 10 years. Great overview, fantastic guide! I would definately recommend it to anyone. This allowed me to choose where i wanted to spend more time the next day and our guide was very helpful in giving us tips on how to use the Metro and other places to visit, shopping, etc. It was a great day and introduction to Paris for someone traveling alone.