Our guide was Olga. She was cheerful, helpful, informative, engaging and answered all questions. This was pricey and a long day but a Must-Do if you have the time, money and energy. It was a very comprehensive tour of Gaudi history and architecture. All very interesting, fun and informative. If you were to do it all on your own it would take much longer, not be as informative, possibly interesting or as cost effective. Everything is taken care of for you on this tour. It is also nice that the tour is capped at 15 people to make it a bit more up close and personal. Highly recommended.