Monica's apartment is spacious, very convenient to both subway and to points of interest, and is well appointed. Four of us stayed six nights and were totally comfortable throughout our stay. The neighborhood feels mostly residential with a dose of commercial. The street is a main boulevard (which is also part of its being so convenient) of Eixample but traffic noise is buffered by the street's generous proportions and tree-lined medians. It did not affect quality of our stay.
We particularly liked the neighborhood, quality of the baths and kitchen, the scale of the apartment, and Monica's speedy responses. We had no issues of any kind during our stay. Monica made the check-in and check-outs very easy. This was my first AirBnB experience and I will definitely use them again.