Anne is a great, very communicative host, and Jaime made the check-in process easy and fun. They provide a wealth of information in a guidebook and recommendations on places to eat and visit. They are also both very easy to reach if you need anything during your stay.
Overall, the apartment is phenomenal. The location is fantastic - very close to the Gothic Quarter, a 20-minute walk to both Casa Batllo and La Sagrada Familia, and 10 minutes to the Arc de Triomf. There are lots of taxis nearby, and a wealth of restaurants and cafes.
Like other reviews mentioned, there is street noise for the rooms with balconies, but that's the trade off you make for having TWO amazing balcony spaces! It's easily remedied with a white noise machine if you're a light sleeper. Beds are large and the two bathrooms are accessible by all in the apartment.
I would absolutely recommend staying here!