We enjoyed the views and the Basilica, but found the guide to be a bit boring.

Excellent!! Amazing!! We had the best guide ever. He truly was a joy. If you are thinking about taking this trip. Take it. There was one part of the trip where the water line meets the mountains and the sky line and it looked surreal. I'm convinced this is where Dali got his inspiration!!

This was good to get an overview of Barcelona, although the PArk Guell stop is a little deceiving to drop you off down the bottom of the hill and tell you to take a 10 minute walk to the site.
The way we went when the hop on - hop off was over was to take the subway to the closest stop and walked.

This one had good and bad points It said you could take the train into Barcelona, but then we got guided to the Aerobus that would cost another 5 Euro and if we wanted to take the train we would have to go to another terminal to do so. I felt mislead by this. The $ saved in the Gaudi sites was good.