We enjoyed our stay in the apartment very much. It is located super centrally, just a 5 mins walk from Central Station. Supermarkets, Restaurants, Bars, everything is nearby. The neighborhood was vivid but not too noisy (we caught good sleep). The apartment is nicely equipped, and the pictures match the actual experience. The only thing that surprised us was the suuuuper narrow staircase (don't you have too heavy luggage!) - but that's probably just costumbre in Spain.
What we absolutely do have to highlight is the world-class service. The A/C broke during our stay, and ValenciaGUEST took immediate care of everything, communicated transparently, and made sure the problem was fixed as quickly as possible. You definitely want a landlord as committed as ValenciaGUEST!
To sum up: A recommendable place we will be happy to return to.