I stayed at Begoña's house for two weeks and I really enjoyed the vist. Her apartment is really well located: you can easily enjoy the beach, which is reachable by tram, or you can visit the city centre that is 15 minutes walking. The location itself has some nice bars and restaurants where you can have tapas and beers.
The apartment was clean and Begoña makes you feel like at home. She leaves you complete privacy and she gives you some useful advises to exploit Valencia at its best.
I for sure recommend her place.