Viator had wrong starting time printed on voucher. Voucher said 9:30, but sign at stop (Tour Eiffel) said 9:45. Bus was also 15 minutes late, and we had arrived early, so we stood in rain and wind for nearly 45 minutes. Bus is very slow, attendant was rude, and audio did not work very well.
Walking tour was ok. Guide was nearly 20 minutes late and not much personality. Class was great -- memorable experience and wonderful food and wine. We highly recommend L'Amore restaurant for cooking classes or just dining.