Thanks so much!
We're also the wanderers, but in a new city we sometimes find a walking tour is useful either for orientation upfront, or to clear up questions about things we've noticed. The wine and tapas tour is semi on the radar more for the opportunity to meet new people than to have a drink and a snack. Picking those things carefully, we've been able to have time with other travelers from other countries (not always English-speaking).
I'm looking forward to our trip...your pictures are great. Hope you can post some reports, too!