Thank you for your review, although we think you may have mixed up this visit with another one that you took. We do not offer free tours, and this is a subject that we take very seriously. The reason for this is that we are committed to supporting the professional guide community here in Paris, who have chosen their career by passion and who do an amazing job sharing our history, art and culture with our visitors every day. Guides on free tours are not paid, they often have to pay the company a fee depending on how many guests they have on the tour (remember the group photo?) and the only way they can be paid for their work is by asking you for tips or upselling other tours, so the tour is not really free for you anyway. We are very much against this, it puts the guides in a precarious situation financially - potentially working and losing money - and we believe they should be compensated properly for their great work, not having to count on tips or commissions.
That said, we are very glad that you enjoyed your tour, we hope you had a wonderful time here in Paris, and that we may see you again on another of our tours with another of our wonderful guides!