Though I'm not a native Spaniard, I studied abroad here and visited too- this is one of the best…read morerooftop views in the city! Unless you make a dinner reservation (only way to get food too), tickets are 5 euro to enter the bar and you might wait around 10 min in line to enter. While cocktails are expensive by European standards at 10 euro, tinto de verano (a classic) isn't terrible at 5 euro. Even without drinks, definitely worth it just for the view! Sunsets are amazing. On a chilly evening, they have heaters over some of the lounge chairs. I'd highly recommend to get a great view of the city!