The apartment is exactly as shown in the pictures. Very well equipped, comfortable and spotlessly clean.
Air con worked well which was great in the current heatwave.
The apartment is located very close to the central market, plenty of good restaurants, bars etc, but in a very peaceful location.
As for the hosts, the communication was first class, they were very accommodating, helpful and very friendly (in a non intrusive manner). Despite my flight landing a lot latter than planned, there was no fuss and they gave me instructions on how to get to the apartment every step of the way.
If you want to stay in the centre of Valencia I would highly recommend.