The apartment is spacious, well equipped and a 5-10 min walk to old town and metro. Ruzafa also has lots of bars, cafes etc and provides cheaper alternatives for food/drink than the centre.
The downsides are that Ruzafa is popular with hen and stag dos at the weekend so the front 2 bedrooms are only suitable for very heavy sleepers. The kitchen and bathrooms are quite dated, but this didn't bother us as they were functional. The outside seating area gets no sun and appears to be shared with another resident.
Overall a pleasant stay but if you are a light sleeper I would recommend looking for accommodation further out and accepting the longer walk in.