Jeremie's place was an amazing find and the favorite AirBNB of our trip. This is an up-scale feeling loft in a great location. You'll feel like you're living in style. The place is stylishly decorated and very spacious with a very generous kitchen to boot.
While close to the Sagrada Familia, you're likely only going to visit that once, and it's a little far from other great area in Barcelona, like the Gothic Quarter (1.5 miles) which was my wife's and my favorite part of the trip. Walking is a big part of our vacation stay, so we didn't mind. We love discovering random shops along the way. But others may have to rely more on cabs and public transit to get to some of these other areas. But others who aren't as mobile and hate public transit may wish to stay closer.
We would highly recommend it, and would gladly stay again should we ever revisit Barcelona!