We really enjoyed our stay in this apartment. The location is perfect! The Sagrada Familia is just around the corner and there are plenty of restaurants, cafes and grocery shops in the neighborhood. We walked to the beach one day but the metro is also just 2 minute walk away and very easy to use.
There was plenty of space for our party of three and the apartment was modern and very tidy. The street is noisy (traffic echoes from the buildings) but the noise doesn't come in if the windows closed. The stairs (70 steps) are a bit narrow which is good to take into account when booking. Kitchen worked fine for our breakfasts, we ate out the other times. The only thing we missed was fire alarms in the bedrooms.
We would warmly recommend this flat!