My friends and I rented two apartments in this building, the 1st and 3rd floor. We were two families, with kids ages 11-15. The apartments were sparkling clean and stylish, accurate to the photos. The location is very central, just a block away from the extraordinary main cathedral, and walking distance to everywhere else we wanted to go. (Don't miss La Abuela, an amazing gelato place about a two minutes walk away!)
Specifics about the apartments: The space is cozy, not sprawling, but well laid-out. One bedroom has an attached bath, and the other bath is off the living room for use by the second bedroom. Despite the lively street, the inside is quiet -- thick windows, which also let in nice light. The 1st floor apartment also has a tiny patio with a table and chairs in the airshaft; the upper apartment has gorgeous floor tiles.
Piru was great with quick communication during booking and when planning our arrival. She also left water, tea, coffee, and a few snacks in the apartment for us.
A note about Sevilla. We absolutely adored this city. Visiting in December, we had seen the weather reports and expected spring-like warmth. Note that in the height of the afternoon, this was true, but we found ourselves unprepared for colder mornings and evenings. Layer up, and enjoy!