Sergio is a very nice host who can give you nice tips about Séville.
However were quite disappointed on arrival when we have discovered the appartement. Unless its perfect location in the center, it is a very old building and some people were working upstairs so it was very noisy ! And very often some dust and gravel were dropping from the floor upstairs....
The kitchen is so small you cannot cook properly and the food from the fridge was frozen...
The sofa was not so clean and was wet upon arrival and we had to change the cushions to sit down...
The bed as ok but a bit creaking and the lights were not so bright so the flat was quite dark with a bulb missing.
Hopefully, we spent most of time outside only for 3 days!
Unfortunately I won't recommend this appartment without these changes needed.