We really enjoyed our stay in 'The Yellow Box'. Maria was a great host, responded to all messages quickly (including easy to follow instructions for getting to the apartment) and provided all the items you would need for breakfast which was a really nice touch. Her friend Isca let us into the apartment when we arrived and was very friendly and helpful. The apartment itself is a great space, very open and airy and brilliantly furnished. The bathroom doors are pretty much see through which helps the open feel of the apartment but means you need to be pretty familiar with whoever you are travelling with. Wasn't an issue at all with our stay but something to bear in mind. Location wise the apartment is next to a couple of bars so there can be a little noise on an evening but this wasn't overly intrusive and also was great if we wanted to have a few drinks on an evening. There is a supermarket on the doorstep which was ideal. We stocked up on water on a morning and went exploring each day. The apartment is within walking distance of all of the sites (we never used public transport apart from a bus to the airport) and some excellent restaurants and bars so provided a perfect place for our stay. I would highly recommend Maria's apartment and also Maria as a host! Seville is a beautiful city and we had an amazing time, helped by a stress free stay in a great location.