Had a great time in Barcelona, though it was a little unstable on the streets and the center blocked, vandalism and all of that around, well, you know. Exciting to some extend, the heli roaming above all day, like you are under siege or something.
We did 4 days on foot, mostly seen every corner.
A great place to crash for a vacation, close to everything, pretty spacious. Had extra welcome with a bottle of red, fruits and stuff, never got that on bnb before, got to us right. Arian was easy to reach, friendly and helpful.
Keep in mind, you have to extra pay local tourist tax of 2-3 euros per person/night upon arrival.
I recommend trying La paradeta (affordable fresh seafood). There are some around.
Have fun!