The location of the house was in a very cool neighborhood of bars and restaurants, a lot of activity at night but you don't hear any noise when you're in the house which is perfect.
The house is about 20 mins walk from the cathedral and the center and the walk to get there is very pleasant .
We stayed 3 days and never once needed to take a cab or public transport, all of the main attractions are within a walking distance.
Overall if you want to visit Seville and need a clean convenient place to stay at I would definitely recommend it.
Walter is very kind, our flight was delayed and we arrived pretty late paint midnight and he was very nice when accepting us.