I actually booked our apartment for the wrong date (one day later) and realised this only when we were already on the train to Valencia. I contacted the host, he was super friendly and assisted us in everyway. Fortunately, the apartment was available, so we moved in earlier. It was very clean and big enough for a couple. There is a small balcony overlooking the small streets of Valencia which was really nice. On the last day, we had a train at 14:00 and the checkout was at 11:00. The host let us keep.our luggage in the room and pick it up before our train at around 13:00 without any extra charge. Overall, amazing service, very polite and helpful host and ultra nice location!