We stayed here for three weeks with our two kids, one under the age of 4, and it was lovely vacations!
There're three rooms and a big dining room which was our family space, and all things you might need for cooking, cleaning, taking care of clothes etc., as well as for studying, occasional work or just relaxing. And we really appreciated the ground floor as it's accessible for kids and also apartment is cool (though there is an air conditioner, we started to use it only at the end of our stay when it became really hot in Valencia).
The location of apartment is very convenient – just 5 minutes from the metro and not very far from the sea. Nearby there're pharmacies, shops to buy food, toys, home accessories. Also, the most beautiful city park Jardi d'Ayora is right there, and it's incredible! We frequently visited it and children enjoyed the playground while we were stunned by the beauty of trees, flowers, alleys as well as some local cultural events.
Fernando is a great host: he was very helpful answering our questions, giving advices and assisting with domestic issues. We definitely want to visit Valencia again and stay at his place!