I don't recommend this place.
Here are the good and the bad things we found. We stayed one night in september.

Bad things
The apartment is not 5 minutes walk from the metro, but more like 10. And it is not 10 minutes from Sagrada Familia, it is 30 minutes.
The bed is very small and when we arrived didn't seem like the sheet very ever ironed. The bathroom didn't have any towels and we had to call the staff to get them. When they came they gave us 2 towels for hand and 1 towel for the shower, 1 in total!!!
They wanted to have 50 Euros for cleaning fees cash and immediately!!!
The kitchen didn't have neither anything to eat for breakfast nor paper towels, nor salt, oil or anything that could be used to cook something.
This means 120 Euro for one night for not even breakfast. This is not BnB.
The shower heavily leaks. The shower head looked like it was not cleaned for a while.
Wifi password is written on a box behind a wardrobe.
Air condition was there, but it was not possible to turn it on.
The table lamp was broken.
When we arrived we asked if we could leave our luggages in the apartment till late the day after and they said yes and they said we could arrange a time for checkout. The day after we wrote them to agree on a time for checking out and only then they tell us that someone is coming because they got a last minute booking, soon after that someone knocks at the door! I demand I'm warned before and not that they answer only when I write them, this was ridiculus and very unprofessional!!!
I quote Ana's feedback for many things.

Good things
The staff was helpful in arranging our checkin.
The apartment is spacious for 2 people and with enough light even if it is at ground floor.