My parents are just back from a wedding in Valencia and they stayed at Viviana's for the week.
They said that the apartment was lovely, so clean and modern and looked recently refurbished. It is located very close to a Metro station so they arrived by Metro from the Airport.
Viviana was the perfect host and sent recommendations of what to do and how to get to places in advance and met my parents at check-in to hand over the keys. Viviana was very helpful and friendly and they would have no hesitation in recommending a stay here.