Luz was very nice from the beginning. She was helping me out with the best way to arrive to the apartment.
What surprised me personally (it might have been my fault if it was on the description) is that I didn't know she didn't live on the apartment and that someone else was. Anyway, Andrés was very nice.
Location wise worked great for me because I needed to go to the University of Valencia, but otherwise I'd recommend to be closer to the Ciudad Vieja. The metro Aragón is very close.