The space:
We loved our stay at Martin's place, it was very central to Mont Juic and La Rambla, about a 10-15 minute walk each way. Martin was a very gracious host and checked in with us before we arrived and was there to greet us when we checked in to give us a tour of the place. The unit is a 2 bedroom apartment and you are renting one of the 2 bedrooms. Each room has a private bathroom. There is a shared common space that includes the living room and kitchen. Kitchen is fully equipped for you to make a meal if you'd rather stay in for the day. The space is located on a lightly trafficked street. At night noises can get echoed and disturbed your sleep if you're a light sleeper, but if you enjoy the sounds of the city, then it's perfect. There is no balcony but the window fully opens for you to take in the fresh air and enjoy a pastry while watching passerby. Wifi was plenty fast for us to plan our day and book events.
Transportation:
If you choose to arrive by public transport, I recommend taking the aerobus and getting off at Urgell stop, then walking about 12 minutes the rest of the way. Aerobus tickets can be purchased in advanced or on the bus itself which is a nice convenience. It comes every 5 minutes so no need to rush.
The neighborhood:
As I mentioned above, the space is central to La Rambla and Mont Juic. The Sagrada Familia is a bit further away but still accessible by foot if you don't mind walking around the city. There is plenty to explore in the immediate vicinity as well. There is a nearby Taco Alto that serves some of the best tacos we've ever had. Federal cafe is really cute for a brunch snack. Syra coffee is an 8 minutes walk and has excellent coffee for less than 3 euros, the pastry store around the corner compliments your morning coffee. There is a moderate size playground just around the block if you are traveling with little ones.
Loved our stay here and would definitely stay again!