It is just an average bar, very typical in Spain, a small place where you can have good food for a reasonable price. Nothing to call home about really, but a good place where people from the neighborhood would go frequently and having a good meal. A typical small bar in Spain, but with owners with an exquisite taste for music.
I totally recommend to pay a visit if you happen to be in Valencia, but hold your expectations because you're going to be disappointed if you expect something cool, big or refined. It's a small place with neighbourhood charm.