We stayed here for 3 nights and could not have been happier with the place. The design was excellent and the execution was to a high standard. There was plenty of space and both bedrooms were big enough for couples. The bathrooms were finished well and we were particularly impressed with the shower pressure which was good, even when both showers were being used. The balcony and terrace were nice places to sit and relax. The kitchen was plenty for making small meals.
The host was helpful and always swift in her response when we needed her.
Location wise it was great, we walked to most places, there was plenty of bars and restaurants close and although the apartment is on a main street, you couldn't here the traffic from the bedrooms which are at the back of the apartment. There is a great ramen place just downstairs.
Overall we would definitely recommend this place to anyone looking to stay in Barcelona.