I stayed at this cute Airbnb for two nights, and I was really happy with my stay. The apartment is super central, and in walking distance to everything! 5 mins from most museums, 5 mins from the Mercado Central de Atarazanas, 5 mins from the escalator to the Alcazaba fortress, 3 mins from the harbor, 1 min from the main shopping street, 15 mins from the beach. This means that it is super easy to come home in between your sightseeing and change clothes, unload your shopping bags, relax etc. The apartment is small but has everything you would need, and you could cook a simple meal in the kitchen if you wished. Only downside to this apartment is the noise from the street.
Antonio was a great host, communication was quick and easy. He met me at the apartment personally, and even allowed me to check in a little early, as the apartment was free.
I can recommend this place!