Seven of us stayed at Serennia's Apartment for a winter city break. The flat is perfect for a larger group as it gives you all a bit of space but also has a big communal room when you want to get together. The flat was clean and comfortable and had everything you could need for a weekend away. The location was perfect close to a metro if you needed it but also easily walkable to all the main attractions. We got a transport ticket that allowed us to use the train, metro and funicular railway at the cost of one euro a trip - ask at the train station at the airport. We went to an amazing place for dinner - Cervecería Catalana which was just a short walk from the apartment. This place was buzzing and a big queue to get in and we had the best tapas and so reasonable.