My time at Jon's place in Barcelona was fantastic. Everything looked as good as, if not better than, the pictures online (for example, the photos did not accurately capture how nice all the appliances are). The entire apartment is very thoughtfully furnished and has everything you will need for a great stay in Spain.
The best part of this apartment, however, is the incredible service from Jon. He did everything he could to make us comfortable and was immediately responsive whenever we had a question. Would recommend this place to anyone!