The full day tour was great. Plenty of time to spend in the city and no shortage of things to see and do. We didn't opt for the lunch and found a great local hotel serving a good and reasonably priced meal.
Everything worked as planned on the trip up to Montserrat. Good advice form the guide on how to best spent our time. We went in September so the weather was great and the crowd was manageable. We had a little miscue hooking up with our guide in the afternoon but it all worked out. The tour went well and we returned on our own the next day to tour the interior of Sagrada Familia. Well worth the time. There was a long line for tickets but it went fast.