Our guide was a nice smart young lady but four solid hours of walking ending at a Restaurant on our own was exhausting. Maybe because we are all "middle aged" we all felt a slightly slower pace(often times our guide was over a block ahead) would have been great. Only one time did she wait for us to cross the street with her and the pace was so fast I really can't tell you more then three things of interest we saw. It was all a blur. I am a travel agent and would be very careful who I recommended this tour to.
I've done many private tours in many different cities and without a doubt this was the best tour guide I have ever had. Sonya was everything a guide should be and more-smart, gracious and very interesting. There were four of us and we all feel the same way. The tour and guide were perfect. A tour is really only as good as the guide. I had been to Barcelona before but really didn't know the city until I took this tour.