The apartment is very modern and neatly decorated, it is a comfortable place to stay in. Maria is very nice and welcoming and told us to always ask if we needed anything. The apartment is not quite in the center of Sevilla but the bus station is very close and there are buses going to the center frequently (every 5 to 10 min). As Maria lend us her bus card it was very cheap to go by bus. (But we chose to walk some times- about a 25 min walk)
I can only recommend her place!