Starting with the host: Alberto was fantastic. He picked us up from the train station (San Bernardo is closest to the apartment) and brought us right to the apartment. He gave us a tour of the apartment, showed us where to go and what to do, and was very quick to respond to any questions (and thankfully he could do all this in English because I am terrible at Spanish). He gave us a long list of places to go and where to eat. Pay attention to this list, it is excellent. Micelas is nearby and is very good.
Now for the place: Again, it was fantastic. It is much bigger than we thought it would be. It was stocked with pots, pans, ground coffee, milk, spices, and more which came in handy when we got there. Everything was very clean, and it felt safe staying there. Parking wasn't too hard either, which was unexpected.
Sleeping was fantastic - I'm pretty sure that the bed is memory foam. With the blinds shut, you feel like you're in a dark cave, even at noon. The neighbors do move around on weekdays at around 8 am for a little while and it sounds like they're in the apartment. But, around 9 am it sounded like they quieted down again. You're on the top floor so nobody will stomp around on your head.
The wifi was great, as was the TV and DVD selection. I'd recommend "Ace Ventura un Detectivo Diferente."
It was raining for a day but Alberto provided 2 umbrellas.. helpful if you choose not to watch Ace Ventura.
Expect to take short showers since the water runs out pretty quick. There is also a bidet for those of you who want to get fancy.
You're in walking distance of several markets and panaderias, and the bus stop which will take you right into town for 1,40. We chose to walk to the city center, which was a straight shot and took a little over 30 minutes to get there. If you want to take a cab, it's probably best to either call the cab company direct or use MyTaxi since Cabify is not common in that neighborhood and you'll wait 20 minutes at least for a ride. It's about 6-10 Euro to get to the center, depending on company/time.
Overall, this place is an excellent deal and when we get back to Sevilla we will try to book Alberto again. You should too.