We've just spent 5 days at Alberto's apartment which was very spacious and had a fantastic view over the city as its on the 32nd floor . The flat is not routinely lived in so has loads of storage. We hired a car and there was dedicated parking in the basement.We also used the small gym but weren't brave enough to try the large outdoor pool in February.
The location is next to the modern part of the city and has loads of restaurants and cafes nearby. It is also about 10 minutes walk from a large shopping centre. Thoroughly recommend both the apartment and Valencia.