We stayed 10 days at Antonios place and totally loved it.
Awesome location, close to all you would need and think of visiting Valencia.
The apartment is really cool and cozy and you will find yourselves at home in a second.
Bed is a bit hard and some noise from restaurants and bars down in the streets - but all just part of the city vibe. We loved it and can recommend to anyone out for an urban get-away.