Carlos is a very good host. He was very helpful: gave me a map of Seville (what was very valuable) and recommendations for the restaurants in the area, as well as in the Center. He was very friendly. He spoke a good English that helped a lot with communication. His apartment was not very big, but was clean and situated in a quite area with access to a the restaurants, bars and stores. The room had AC and a nice big bed. It was a little bit off the Center, but was close to the bus stations, where for 1.40 euro the bus takes you to the Center. It can be better than staying in the Center for the directionally challenged people like me. The bus brings you closer to the attractions of the city, sparing you from wandering through a maze of Sevillian streets. With the very reasonable price, the room in the Carlos's apartment was a great value for the solo travelers like me.