Definitely the best experience with airbnb. Elisenda is a fantastic host. She pays attention to detail, is very helpful and makes sure the guests feel at home. The appartment is comfortable, cozy, super well located in front of the metro station and has absolutely everything you might need to cook and have a comfortable stay.
Yes, there is a wall close to the windows and its quite dark inside, but if you are in Barcelona you wont be spending your day inside the appartment! The wifi connection is excellent.
The area is really beautiful, close to Sagrada Familia and Poble Nou. There are many restaurants, bars, supermarkets nearby.
I definitely recomend this place!