Location could not be better. Great neighborhood, however it is a 30-45 minute walk or more to many tourist areas such as Barceloneta and La Rambla. But Gracia is amazing with so much to see and many great restaurants.
You are living in Sandra's home, among her belongings. So you have to be okay with this. Of course, she isn't there.
There is no privacy between the bedroom and bathroom. Otherwise, fantastic and great communication.