I've had a great stay at Elena's studio. I stayed in Sevilla for 3 nights and everything was perfect. The location is great, it's only a 12 minute walk to the cathedral and there is a supermarket and several restaurants/bars nearby. The building is beautiful and the studio itself is very cozy, everything you need is there, even a washingmachine. It was the first time I was staying in this city during the summer so I was very happy with the airconditioning. Elena was very flexible regarding the check-in and replied very quickly to messages. I wasn't able to do the check-in myself because my flight only landed after 23:00 but we found a solution for that.
So it was a perfect stay and I would absolutely recommend this place!