Agustin and Gabriela's appartment is a great place to stay and highly recommendable. It looks exactly like on the pictures and is well located close to the Mercado central and the old city center of Valencia (while still being quiet at night).
Gabriela welcomed us the night of our arrival. She was very welcoming and understanding although due to a last minute flight cancellation we arrived with much delay in the middle of the night.
She gave us some great advice on what to do and see in Valencia.
If we come to Valencia again we'd love to stay again at the appartment.