Because every room comes with an amazing view on the square of the Fine Arts museum. You can get breakfast at the Café Pilar, insides are great and they have also a cool terrace.
I booked a regular room and turns out I got one of their best at the top floor with a big and quite balcony on one side and an amazing view on the square on the other. With a nice bathtub in the middle of the room that gets kissed by the morning sun. The interiors are also very modern and confortable.