This is a great place to stay if you're looking to be in the heart of everything Barcelona. If you head to the right from the apartment, it's about a 10 minute walk to the port, and 15 minute walk to Barceloneta beach. If you head left, you can be at Plaza san Jaume, Las Ramblas, Palau de musica, etc. in 10 minutes. The metro is also very close (~3 minute walk). The apartment itself sits right off the square of Santa Maria del mar.
Ella and Tomas were very friendly and helpful hosts who made arrival to the apartment easy. Upon arrival, Tomas sat down with me and provided several attraction and restaurant tips, which made the trip more enjoyable and helped us avoid the tourist traps that envelop much of Barcelona. The apartment is accessed via a set of keys to the building, and then a second set to the apartment. While this made me feel safer, the room has windows to an alleyway and is only 1 floor off the ground.
My only complaints from the trip were related to the room itself. The bed is rather small and lumpy, and tough to share if one person is 6ft or taller. Although its central location makes it easy to be in the heart of Barcelona, it is very loud and I would not recommend staying here if you like to be in bed before 11 pm. You can hear pots and pans banging/ being washed at the restaurants below and people shouting throughout much of the night. If you're a night owl and enjoy going out, this probably won't affect you and you will benefit from the close location to bars/restaurants.