We had a great stay at Ana’s place. It’s centrally located — only a 10 minute walk to pretty much all the big tourist sights as well as restaurants, shopping, and grocery.
The apartment itself has a queen bed (I think the listing says double bed but that can mean a lot of things in Spain) and a nice little kitchen. The wifi is REALLY fast.
Our contact, Lola, was especially friendly, and gave us lots of good recommendations and was helpful when we had questions. Overall the apartment is a great base of operations for anyone wanting to explore Seville.