I spent over a month at Gaston's place and I had a great time! The location is perfect to visit the lively Ruzafa neighborhood. Due to the orientation, the apartment is quiet and has a lot of natural light.
The place is recently renovated, very well equipped, and is comfortable and beautifully decorated.
Gaston and Monica are great hosts, communication is fast and simple and they're always willing to help with anything :)
Definitely a great place to stay in Valencia!