We stayed up to two weeks at Mariem's flat. It's pretty central, in the old town Triana. You need only 10 minutes in the city center, so everything is pretty close. The flat is very modern and comfortable, big kitchen for cooking and big bedrooms. So everything was fine. But be aware, the walls are very thin, we heard often long talks from downstairs at the bar, which made it sometimes difficult to sleep, since it went up to 2-3 hours at the night. Also, the noise that the other neighbors made in the morning were sometimes annoying, the dog has barked every evening. But overall we enjoyed the stay.