The apartment is centrally located, within walking distance of the old city and multiple public transport hubs. The neighbourhood is a bit rough a round the edges. Not unsafe, but a lot of the buildings could use some maintenance and the playground around the corner is very worn down/dirty. Fortunately a lot of other options are close by but some people may mind. We would probably also opt for a different area next time but didn't mind.
The building itself is also quite dated meaning very thin walls and a teeny tiny elevator only just fitting a stroller and 1 person. The other person had to walk up 5 floors or wait. Heard the neighbours arguing quite a bit and practicing the recorder, as well as furniture being moved around etc. This might be bothersome for some people.
The apartment itself is clean, bright and nicely decorated. The furniture is very basic but functioning, same goes for the kitchen. It's all there, but the knives aren't the sharpest, electric cooking takes patience and the coffee pot could use replacing.
The bathroom is small but works well. There's a typical sewer smell coming from the wash basin, which we've experienced in other places in Spain too. Baby bath was present but the plug was missing and it was lined with black spots, so we didn't use it.
The balcony is big enough to fit a two person bistro and two people. It overlooks a parking area and police station, both of which are quiet. We didn't have a car and were happy we didn't because parking spots are limited and we never saw one open for more then a few minutes.
Personally we didn't like the master bed, it's quite small (tall dutch people), mattress is very firm (some might like) and squeaky (with every turn/move). The second bed, where our daughter slept, was much better.
Overall I'd say the place is excellent for a few nights but for a longer stay (we stayed a week), I would personally choose something with a bit more comfort and in a different area.