All 6 of us had a great stay at Juan's place! It is clean, tidy and a great location (right between the train station and the city centre). The city centre is easy to reach, but you can also quickly travel to other place (Cordoba, Huelva, Cadiz, etc). Juan gave us some information beforehand which was very useful.
We travelled with 6 adults (3 couples) and we never had the feeling that it wasn't enough space. Everyone had a proper bed and their own bathroom. The living space and kitchen are big enough too. The buidling itself is clean and neat.
All in all, we had a great stay and would certainly recommend you booking it as well.