We stayed at Alberto's apartment in the last week of May and it was much warmer than expected. He came late at night to give us the air conditioning control which we though was very considerate of him. The apartment is a 10 minutes drive from the city centre, we drove in our car and parking wasn't an issue. If you are using public transport it is one bus straight to the city centre. The apartment was clean, parking was not an issue, he had a vast collection of books to read if you are into it. It was comfortable and within easy reach of the city centre. He was a great host and I would recommend you to stay here if you are thinking of visiting Seville.