Absolutely the best place for two people to experience Seville. All the amenities are there - bed is very comfortable, kitchen and bathroom are surprisingly large for the space, and the shower is roomy with great water pressure. My brother even fell asleep on the couch once and said it was very comfortable :) More importantly, the location is unbeatable - minutes away from Alcazar and the Cathedral and tons of restaurants and shopping.
María and Abel are also fantastic hosts - they were communicative and very accommodating when our arrival time kept changing based on the train schedule. We also had a small issue getting into the apartment our first night (completely our fault, we were not turning the key far enough) and Abel arrived within 15 minutes to help us, no questions asked. They are incredibly kind and made our experience that much better! We wish we could have stayed longer and we absolutely would stay here again!