I stayed at Juan's place for 4 nights with my partner on a recent visit to Valencia. Juan himself met us at the apartment and was very helpful in explaining the check in and check out procedure as well as access to the building. He had also left a number of tips which were much appreciated.
The location of the apartment was great, close to plenty of amenities and all the tourist spots as well as a metro station so getting there from the airport couldn't have been easier.
The apartment itself was lovely. Modern but with some traditional touches. It was the perfect size for two people and the air con cooled it really quickly. It is down a side street off the main road so there is very little noise from the street and got a great sleep all 4 nights.
Would definitely recommend staying here for anyone who is visiting Valencia for a few days.