Apartment was perfect for our family of 4. We stayed 3 nights. Place was clean. Beds were comfortable, and we enjoyed the pool (it was very hot so the pool was a nice treat for us). There are no doors to the bedrooms, but this helped keep the whole place cool; it could be a problem for people trying to get kids to sleep earlier, but wasn't for us.
Macarena was great-- quick to respond to questions and very pleasant.
Really liked the neighborhood--close enough to walk to tourist places but didn't feel touristy.
Bus 5 is just f own the street as ND stops at the cathedral. Delicious reasonably priced tapas places within a short walk (plaza mayor is also very close, and kids liked walking along the top at sunset). Grocery store nearby too.
Perfect for us, and when we return to Seville we wold love to stay here again.