Excellent.
Marta is a fantastic host and her apartment offers every single detail to make your stay hassle-free; all the necessities are provided (toilet paper, washing powder, dishwasher tablets, coffee... I could keep going!).
Location wise, the apartment is 3-5 stops from the city centre of Barcelona (15-20 mins), in Gracia, with public transport very nearby.
On a plus side, Marta provided us with great tips on how to visit landmarks and where to go for dinner, etc.
We had a great week and highly recommend this property!