Lina is a great person and a great host - if you need anything she will gladly help you but otherwise she will let you be. About the location of the place, we were mesmerised by this part of Barcelona - not so touristic and much more local, quiet and narrow streets during, 15 minutes walking distance to Parc Gruell, around 20-30 minutes to city center by metro, this part of Barcelona is like a maze asking to be discovered. Her house has a lot of personality, a warm one, but not in an overintoxicating way - it's made for travelers and you have everything you might need. As a bonus that comes with the house, you'll have access to a rooftop with an incredible view of Barcelona. So I highly recommand Lina and her place.