We stayed with Kathy and Michael for five short days at the tail end of July. They were both incredibly hospitable - the apartment was heated for our arrival and Michael gave us a quick tour of the facilities and consumables. It had a good amount of space for a couple or small family, was warm and comfortable, and Kathy and Michael made sure we had everything we needed (including extra bedding - which we used to make a pillow fort on our first night).
Had a great time. A great place to stay - especially if MONA is one of the main attractions.