We enjoyed the stay in this spacious apartment (we were with two couples). In particular the neighbourhood is very nice (thursday market, food market opposite of apartment, supermarket, groceries, shops and little bars, and even small flamenco theater (a must see!) all in one minute walking). It is nice to sit on the balcony and watch all the people on the square doing their business. Although we have never met the owner Ines, contact via the app was very nice and easy, and she gave a lot of good recommendations and advices. In addition, my advice would be to rent bikes (if you like biking). Valencia is very well facilitated for biking with enjoyable bike lanes separated from the car lanes. They can be rented in a shop very near the apartment.
I looked at the other reviews, and I think most of them give an accurate description.