We had a great experience at Marta and Blanca's apartment. The place is exactly as shown in the photos and the host was very helpful, answering every question quickly whenever needed.

Pros
Location in the heart of Sevilla and within a 15 minute walk from everything
Cosy apartment, very clean and well taken care of.

Cons
Wifi speed could be improved, the connection failed for some of the time

We only had two minor issues we found important to take note which were:

1. We arrived later than expected and agreed with the hosts. Even though they mentioned the timing wouldn't be an issue, neither Marta nor Blanca were at the apartment to welcome us. Nevertheless, the problem was solved within a few minutes - since we were not reachable on our mobiles, the kind lady from the bar at the corner reached Blanca, who arrived in 5 minutes.
2. One day, during a short period of time in the afternoon, we had a loss of the electric power in the building, because of an overload of the circuit since all the apartments were occupied, with air conditioners and hair dryers on. When Blanca was reached, she arrived in 5 minutes and quickly reestablished the energy.

None of these issues however disturbed our pleasant stay at the apartment, which we certainly recommend.
Thanks Marta and Blanca for everything.