We were three girls who stayed at Vicente's place for three days. It was a bit crowded for three messy teenage girls, but we had a lovely stay! The apartment is very central, and it has a great atmosphere. Not far from great tapas-places and small "panaderias". Vicente was a great and helpful host, and he took time to explain to us how we got around in the city easily. He even provided us with a bottle of red wine, a bread and other things needed for breakfast and cooking. Just make sure you don't use the air condition to much, as this will cost you a bit extra (though this is hardly a problem, you just need to keep it in mind).
I would definitely recommend staying here! (I totally recommend Valencia in general - a beautiful city, with beautiful people!)