I had a wonderful experience at Andrey&Sasha's place. The location could not be more perfect if you are exploring Valencia. The central market, Plaza del Virgen, Cathedral, Lonja de la Seda, and more are no more than a 5-10 minute walk. The Nord train station is about a 12-15 minute walk. The place itself was spotless and comfortable. Be ready to climb lots of steps and hear some noise from the street at night and over the weekend, but other than that, I wouldn't hesitate to book again in the future.