If you go to Barcelona for the first time, Deco apartment is a wonderful choice.
It is situated in a central neighborhood, very picturesque and not as crowded as other central places close to famous streets and monuments. You just have to walk for a few of minutes to discover the local coffee shops and restaurants, and to get the local vibe.
I went there in a group of five persons and the apartment we booked was really nice. It was very spacious, with enough amenities to satisfy our needs. The apartment was clean, and they provided us enough towels and other accessories. Also, the kitchen is fully equipped with everything you need.
The small terrace was perfect for a sun bath, and the rooftop terrace was the perfect place to drink your morning coffee.
The hosts were extremely nice with us and they offered us plenty of information on Barcelona, the cab strike (which happened during our stay), the transportation system or the nearby shop.
The only recommendation I have for the owners of these apartments is to be make their deposit fee more visible on their Airbnb presentation. Although we were told about it with a week before arriving there, it would be nice if other persons could see it on the website, before booking their apartment.
I recommend this place.