This was a great apartment!
It was in a great location, was a great size and layout for two of us, and was perfectly clean and comfortable as a little oasis in Sevilla. But, the best part was our host, Gema. She met us right on time, had loads of tips and advice for around the city, and was super responsive to all communication. She even booked us a taxi to get to our early morning train departure. Amazing.
The only thing that could potentially be a drawback, is that it is near (above? beside?) a club that plays loud music into the wee hours of the morning on Friday and Saturday nights. It probably won't be an issue if you are wanting to stay out late, but otherwise it could be a bit disturbing for those who go to bed early. It wasn't an issue for us on any other nights.
In general, I wouldn't let this stop me from staying here, as everything else was amazing!