Our stay in Seville was great. Rafael Apartment-Palace was exactly what we were looking for. It was a clean, fully furnished apartment with a kitchen. He even had a washing machine, which worked great for us. Since I had my 3month old baby girl with me, it totally came in handy!
There is a grocery store nearby where you can buy water and other small necessities. The only thing missing was wireless internet, but Rafael recommend Star Bucks to help accomodate our needs. Great place!