Miriam is a wonderful and hospital host. The apartment is beautiful and has everything that you need for a stay in Barcelona.
Miriam makes sure she's in the apartment on arrival to welcome you and explain everything about the apartment. She gave us a map of the city and explained us where the nice places in the city are which are worth a visit. The apartment is perfect with 2 separate rooms, which made it ideal for us to travel with a child.
The only negative is the balcony which is quite small, you can't really sit outside..
We would definitely stay again at Miriams place when we come back to Barcelona.