Great location for sightseeing all around Barcelona. Plenty of nearby bars and restaurants. Lovely, stylish (recently renovated?) interior. Perfect for a few days or a week of exploring the city.
Other positives: there's a washing machine and dryer, shared by all the building's apartments, in a room at the top of the stairwell. Very useful! The garden terrace is lovely.
A couple of caveats: this is not a sunny apartment. It is 3 floors up looking out onto a narrow street that is shaded by some tall trees with a canopy a couple of levels higher. Very little sun makes it down even on the clearest of days. (But the garden terrace makes up for this in many ways.) If there are 4 of you staying...there won't be much room for luggage. (But if there's only one or two then there will be no problem.)
Highly recommended overall. I'd stay again.