The apartment is located within walking distance of a metro station which provides connections to all the must-see locations of Barcelona. The apartment was very clean and had all amenities as promised (and as it appears in the photos)- in fact a lot more!
The apartment having an additional bed room was a plus for us since we have a kid.
Everything about the apartment is noteworthy but what really hooked us are:
1. The full-fledged kitchen
2. The quiet and residential locality; close to metro station.
3. The sunny balcony!
4. The cleanliness of the apartment.
5. The kind host.
The kind host had thoughtfully kept milk, sugar, salt, mineral water and cooking oil(this one on request from us). The host always had quick responses for all our queries before and during the stay. As we had to leave the apartment early morning, he helped us with the taxi booking as well.
In all, I would say we experienced a five-star stay at a homely apartment of a great Barcelonian host.

Negatives of the apartment:
NONE and bet no one can find one!

About the host:
Communication with Alex was smooth and continual before and also during our stay. He was always quick in his response to our queries and helped us with lots of information on Barcelona sight-seeing.
The admirable cooperation from Alex beginning with initial booking till our check-out ensured a memorable and hassle-free vacation for us!
The thoughtfulness and kindness in him is a rare combination for a person. I could not have asked for better host than him!

Recommended for everyone visiting Barcelona :)