We had a great stay in Sevilla. The apartment is very well located, we didn't have to use public transportation at all since everything was within walking distance. The apartment is also very pleasant and well equipped; it can be a bit noisy during the night as it is very central, but with earplugs we were fine. José Maria was very accomodating, despite our crazy hours of arrival and departure (we arrived at 11pm and left at 4am).
We can only recommend this nice apartment !