We stayed in Valencia for a conference at the aquarium and were very happy with our decision to book with Olga! The flat was exactly as described, with a comfortable sitting room, a restful bedroom, the ability to work at the dinner table, and all the ammenities. Everything was sparkling clean and it truly felt like a real home, not a full time tourist apartment. Communications with the host, check-in, getting a second set of keys, struggling a bit with the oven (bit different from ours) - everything was solved quickly and politely!
The science museum is just a few minutes walk away and there are two bus stations (leading to city centre and the Albufera) and a Valebisi city bike station right around the corner. (Highly recommend to book a week and then use the bikes for short trips all over the city.) There are lots of restaurants just around the corner, a small supermarket right across from the flat, and a huge Carrefour about ten minutes walk away.
All in all: Fully recommend staying here!