This is my first stay via AirBnB and I'm happy that it was so successful. I had a very pleasant experience with staying at Silvia's. The apartment is well kept, cosy and very clean. Special thanks to Silvia for maintaining the bathroom absolutely spotlessly clean. In the kitchen one can always find all necessary for making his morning tea or coffee before heading to Barcelona's sights. The only backdrop I can mention is that the room is really small - it's ok if you don't need space, but was a little disadvantage for me as I'm used to spacious apartments.
Silvia is a very nice, artistic and open-hearted person who is always eager to help you to discover all the best of her city. At the same time she doesn't interfere with your privacy. I wish I had more time to know her better, which was almost impossible due to my short stay at hers. Hope, this will be fixed next time ;)
To sum up, I recommend staying in this apartment. Double advantage is that the price is really attractive and it's in a 5-minute walk from Sagrada Familia.