The house worked out great for our group's stay over Labor Day weekend. Portland is small enough that it's easy to get around and the location was a perfect way to have a home base just outside of the city center.
Adam was very responsive to any questions, and his house manual is comprehensive so you generally will know what to expect before getting there. We made a bit too much noise when we first got there, but we quickly were able to clear up the noise complaint with Adam and neighbors.
In short, treat this place well - it's a great spot for a large group (great kitchen), and the patio is great when the weather is nice.