First of all: A 100% recommendation for everyone visiting Sevilla.
The house is perfectly structured. You've got several floors. Each one is equipped with a bathroom and some bedrooms. On the ground floor is a kitchen with enough space so you can cook with the other people living there at the moment.
You can always use the rooftop terrace to have some sunbathing.
The house's location is right in the heart of Sevilla. Everything you need is just nearby. Bars (Alameda), the Mushrooms (Setas de Sevilla), and some groceries stores. The place invites you to stroll around and catch the Sevillan vibe.
Erna is an amazing host. Everything I need was either already in my room or has been delivered by message. If you need something, she'll answer right away to make sure you're alright.
If I ever come back to Sevilla, I definitely check if Erna has a free room for this time.