We visited from the US with 2 kids, ages 12 and 10.
This is a HUGE apartment in the middle of the Las Setas area and is very close lots of food, entertainment and public transportation.
The place is recently remodeled has a private living room and two large bedrooms.
The kitchen has the basic necessities (laundry machine, microwave, stove, dishes, large refrigerator). The only thing the kitchen does not have is a dishwasher.
One word of caution, the downside of a prime location is the noise at night. People in Sevilla stay out late and you will hear them. We had to close all the bedroom doors to help block out the noise at night.
Overall, this is a great place if you can sleep with some outside noise.