This was a great value and location for our short stay in Barcelona. Sarah is an extremely responsive host and she and her friend Eugenia did an amazing job of familiarizing us with the best tapas, bars, and other landmarks in Barcelona. They also were very flexible with check-in and check-out times, even letting us drop our bags off early and explore while they finished cleaning after the prior guest. Location is a 3-4 min walk to the Metro, which takes you anywhere in the city, and it's a few blocks away from amazing tapas and Catalan restaurants.
Some things to be aware of: 1) the apartment is small and good for maybe two people, but not more (was the perfect size for us); 2) the bathroom has a sliding door, which is fine but doesn't allow for as much privacy as a normal door; 3) the bed was listed as a King on the site but we mentioned to Sarah that it's actually more like a Full-Queen, in case you're a light sleeper and need space (I'm a very light sleeper, but slept very well on this bed). These were some drawbacks, but overall Sarah and Eugenia's wonderful hosting and responsiveness, combined with a great location, made this a great choice and value for our 4 day Barcelona stay. We would return.