Location of the apartment close to the beach and the Ciudad de las Artes y Las Ciencas is very convenient. Wifi is excellent, the apartment big enough for family with two kids (10 & 13 yrs).
Due to 3rd floor location (lots of stairs- no elevator) not so suitable for smaller kids. Shared roof terrace is a nice spot for the mornings and evenings.
Sony is a very kind and friendly host, offering good tips and advice.