More or less 10 mins by walk to center for Sevilla is good enough.
It was clean but I can't say sparkling clean. Some of the amenities were missing or were too little for long stays. Overall, I think these were caused by the problem that visitors before us did not leave on time, and Nacho was so kind to accept us earlier than check-in time. Therefore cleaning had to be done quite fast. I totally understand.
Bigger problem was that it is the first floor so you can't keep open window & curtens (if you mind). Also, the room is located next to the enterence of the building, it wakes you up in the night.