Germán is a wonderful host! Very nice and helpful, he will answer to your questions.
The apartment is very spacious (there's various rooms to rent, so shared apartment), kitchen clean and fully equiped. The area is very good with a lot of shops (Lidl, Mercadona, Carrefour...) and restaurants, also very easy to go to the historic center of Valencia (5-10min bus or why not a little walk) and also the City of Arts and Science.
All in all, I would definitely advise this Airbnb for holidays or long stay, it definitely worth it.