Gemma and Alex's place is a great place to stay if you want to explore around Barcelona. The place itself is nice, very clean with all major amenities. Its location is great for public transit, about 10 minutes walking from the Alfons X metro station which can connect all around Barcelona. As it's in a more residential area, it's a bit quieter, but is a 15-minute walk from the main area of Gracia, which has many nice places to eat and explore.