Javier's place is great. Great location, new appartment, awesome neighborhood. We stayed for a week during a work trip, and we could manage to have a great work/visit balance during our staying thanks to the good Internet Wifi and comfortable desks to work on.
Place has extremely easy access to supermarkets, train station (Sorolla), bus stops, metro stations and restaurants, bars.
It's a 45 minutes ride by bus to the beach and 30 minutes ride to UV and UPV (universities). It's at walking distance for Valencia Vella (Old Valencia) and Valencia's Cathedral.
If you want to get to "El Rio" (big park for running, jogging, walking) you will have to take the bus unfortunately. If you feel like it, it's a 30 minutes walk.
Beds, bedrooms and bathrooms: very, very good.
BONUS: great TV cable subscription.