The place is amazing and the view of Sagrada Familia is stunning. The Sagrada Familia is amazing and we spent four hours there. We do recommend booking tickets online in advance to not be disappointed. Everything needed in the neighbourhood, include very good coffee and fresh baguettes and croisants in the bakery next door.
By chance, we were there for the Saint John the Baptist (24-Jun) eve where everyone in Barcelona sets off fireworks from about 8pm to 1am. The locals put on quite a show around the Sagrada Familia. It was loud, unexpected and we very much enjoyed it.