Firstly, the location cannot be beat. Across the river from most tourist things but tons of restaurants on the same side of the river. Seville is a very walkable city, and this apartment is located at a great location basically in the middle of it all. There was some festival happening in Triana while we were there just a few blocks away but none of the noise carried to the apartment.
Emilia and Lorenzo made sure to check in with me to make sure everything was going well and see if there was anything else we needed. They even left us a bottle of wine and some chocolates for when we entered.
My one thing negative was that it was a bit smaller than the pictures made it seem. But that is also me being nit picky because everything else was wonderful including all virtual interactions with the hosts (wasn't able to meet in person because they were put of town).
I highly recommend this apartment for any couple traveling to Seville. We were there for 4 nights but the place would be great for more or less than that.