The apartment matches the description. A spacious kitchen/dining/living area and a nicely-sized bedroom. Both have French doors onto the street. Other reviews mention street noise, and it's true. Bring ear plugs to sleep.
The location in Lavapiés ("the coolest neighborhood in Europe") is excellent for all kinds of reasons (it is cool, you could buy a wig on literally every block, it's central, walkable, heart of El Rastro, Mercado de San Fernando, etc.), but it's not for everyone. Do your homework.
José is awesome, professional, responsive and charming.