We loved the house in Seville. It was clean and had everything you could wish for. The house is beautifully cool, especially when you keep the curtains closed during the day which is great when it is 35 degrees outside. We only used the airco (which is also good, and quite quiet) a few times. We loved the outside deck with swimming pool and used it everyday. When we were there (September) about ⅓ had the sun for a number of hours in the afternoon, which was great because you could sit in the sun for a while and then move to the shade when it was too hot. Because you share the deck with 3 other houses (also holiday rentals) it is always a surprise who will be there. Often we were the only ones, but on one occasion we shared the pool with about 10-12 other people (only 4 chairs though). Virginie is a fantastic host and usually answers within minutes.
The location is fantastic. You certainly do not need a car. Everything is walking distance (within about 30 minutes walk) and the streets are very narrow, with high kerbs, so not easy to drive around - we saw several cars almost stuck. Also there is a cycle rent system (en.sevici.es) with lots of places to take and leave a bicycle (which unfortunately did not take our credit card, so we did not use this - we could have sorted this out in the centre of Seville, but did not mind walking). The house is about 4 minutes walk from Alameda de Hercules, which is a fantastic large street/square absolutely filled with lovely bars and restaurants, where you can have a drink and eat the most fantastic tapas (all day long).