"99 walkable" is not an exaggeration! I really loved taking my three little ones on strolls through downtown Portland. Two really great parks within walking distance, a ton of attractions also within walking distance. Even the Amtrak (which we took from San Jose, CA) was a brisk 1 mile walk, totally doable - and convenient cross-town buses for those who'd rather not walk!
Regarding the house itself, I absolutely loved the thoughtful amenities, the many options for sleeping arrangements, the size of the house! Great for our family of 5. George was a great host, reaching out promptly to arrange final plans before our stay, quickly responsive through the Airbnb app during our trip, and offered to hold our bags while we waited for our train home after checkout. Great place, will definitely return when visiting Portland!