We had a great stay at Chris' place! The house is spacious, clean and light-filled, and centrally located in Ballard. We were in town for a friend's wedding and it was the ideal home base -- close to the wedding reception venue and to many restaurants and cafés in Ballard. (Our favourite of which was hands down Café Besalu -- amazing croissants and pastries!)
My husband and I had fun staying in the airstream, which despite the unusually hot weather stayed nice and cool in the evening. There was even a space heater in case it got too cold, but we didn't end up needing it. Our only comment is that it was slightly less private than we'd anticipated. There weren't any curtains in the airstream and the backyard faces onto a visible alleyway, which is only separated by a low picket fence. This wasn't a big deal for us since we were two people and the neighbourhood felt safe and quiet, but just thought we'd mention it.
We were five friends and would definitely recommend staying at Chris' if you're a larger group. As the listing describes, there is only one bathroom, but Chris was very gracious and let us use the downstairs bathroom too, as the unit was unoccupied at the time.
Chris was very communicative and friendly, and we wouldn't hesitate to recommend staying at his lovely home in Ballard!