Marcel was a great host and had excellent communication. He sent me numerous messages to give me information on the apartment and suggestions for restaurants, stores and travel from Madrid to Barcelona. He checked on when we would arrive and had someone there to let us into the apartment and answer any questions that we had.
The apartment is well furnished and in a safe area with many nice shops and a department store and small shopping mall down the street. There was a security manager on site during the day and an elevator. We were on a family vacation with teenagers, so most nights after dinner we would head back to the apartment to watch a movie or show. The apartment has a newer smart TV where you can access Netflix and other streaming services. We have an extra Amazon Firestick that we take with us and I plugged it into the TV to access all of our services. We didn't cook in the kitchen, but it seemed to have all the items you needed if you decided to. It did have a modern washer and dryer, which was nice to have to do a couple loads of laundry. We rented an apartment in Paris before that had a combo washer/dryer unit that didn't really dry.
There is a pharmacy across the street, a convenience store around the corner and a large grocery store a couple of blocks away at the bottom of the El Corte Inglés department store. There are many nice restaurants and stores within the area and there is a Metro station right outside of the building, which was quite convenient. We were also able to walk to several sites within 10-20 minutes. Sometimes we would take the Metro out and work our way back to the apartment at different stops. Either way, you could take a straight line on the metro to several main sites, including the Sagrada Familia, Arc de Triomf and the Barceloneta station, just outside the marina and beaches (it was about another 8 minute walk from the Metro to the Barceloneta beach) either from the metro station outside the building or the one about a block away. The apartment is on a busy street, so you will get some city noise, which would be the same if you stayed in a hotel in the city. The only time we noticed anything loud noise was when there were any sirens driving by.
Overall, it was a great place to stay and I would stay there again if we go back to Barcelona.