Centrally located, although on Carrer del Sindicat which is a very busy / noisy pedestrian street during the day. (Including buskers etc) If you are out most of the day exploring this is less of an issue.
The property has a spiral staircase over two floors and on to the roof terrace which may not be for everyone. All windows are frosted which although provides privacy does feel somewhat claustrophobic and enclosing.
Terrace is a plus, although small
Note that the neighbour below the apartment found it necessary to bang on her ceiling / our floor when we had the television volume fairly low.
A good base for a couple of nights perhaps but longer term it needs some improvements to make it feel more comfortable