I stayed 4 weeks with Hedyeh and absolutely recommend the accommodation and host. Hedyeh is an amazing host and super friendly. The room and facilities are exactly as described in the listing. The cleanliness was good - it depends a little bit on the other guests too, but it was always taken care of, that the bathroom and kitchen are clean. And Hedyeh is always available if there are any issues or questions.
The appartment is very central, only 10 minutes (walking) from the cathedral, but still really quiet. And most of the time you don't even realize that there are other guests in the house. It has a nice roof terrace where you can sit for your breakfast or lunch!
If I came back to Sevilla one day, I will definitely stay here again!