My friend and I both enjoyed our stay at Francisco's flat. The room is comfortable and everything was clean. The location is also very good and central so that everything is within walking distance. However, you have to be aware that the next metro stop is a 10 to 15min walk away and that you have to walk up the hill to get to the stop. So, make sure your suitcases aren't too heavy. :)
Francisco is a very nice guy and we felt welcome at his place. On our departure day we didn't have to check out in the morning, but could stay until the afternoon since we had an evening flight.