Staying with Mathias and Sally was awesome. First of all, Sally stayed up to meet me when I got in, gave me the wifi code and key, and they even left breakfast out for me in the mornings. I came and went as fairly strange hours during the trip, but every time I ran into them they were both very friendly and welcoming. Plus, the bed was the most comfortable one I've slept in in a long time. Overall, I'd highly recommend both the hosts and the apartment!