The space is exactly as described - we loved the rooftop exactly as much as we thought we would - but the combination of their design choices (fabrics and textures and all the little touches) really makes the whole greater than its parts. Between that, the yummy beds, the thoughtfully stocked kitchen (in addition to basics like sugar, they also had spices, honey, great coffee, and a bottle of cava), and the terrific location (Plaza Nueva is footsteps from groceries and shopping, and minutes walk from all the major sights), our already-high expectations were exceeded.
Check-in was the friendly and thorough - they took time to understand our interests, and then helped us with bookings. They found and made the arrangements for salsa classes, and even a midday flamenco performance that my young children could attend the next day. One of their recommendations really made our stay so I will repeat here: parents will be delighted with the playground at Plaza de la Alfafa, surrounded by restaurants so that the kids keep themselves busy while Mum & Dad have a drink!
The only missing piece was a way to store luggage after checkout. We had to haul everything to a tourist information center that charged EUR 6/piece to store for the day. Our train was at 4:45pm so we really only needed to leave it for a few hours but c'est la vie. We are definitely going to be back to Seville and will look to stay with this host again.