This was a great place for our family of older children. It has a well stocked kitchen and is right by several transportation routes. While not just a block away, it is walkable to La Segrada Familia.
Notes for the neighborhood - A block down the street towards the sea(SE) on Paseo De San Juan there is a 1 Euro sandwich (100 Montaditos) shop for cheap food. There are several little convenience stores close, but there is a Lidl, big budget grocery store a block further than the Metro station on Calle Bailen as well as a couple other semi big ones over on Paseo De San Juan in the same block north if you want to actually cook.