My son and I really enjoyed our stay at Ali and David's place in NW Portland. It is in a really lovely Portland neighborhood, which is in full spring bloom right now!
The house is near the Natural Choices grocery (everything a foodie needs, including espresso), as well as the Alberta arts district with restaurants, more coffee, galleries and stores. There are at least two bus lines within an easy and pleasant walk, so if you decide to do this without a car, it's very do-able. (That's what we did.) However, if you do have a car, there seemed to be plenty of street parking.

The pictures that AirBnb provides present the upstairs apartment just as it is: cozy, uplifting and private. David and Ali are great hosts (although I wasn't sure if Ali existed at first, since we didn't cross paths until the last day), and really sweet people. I liked their kitties a lot, too, but they aren't allowed to wander upstairs!

Highly recommended!