We have stayed in AirBnb's around the world and throughout the US. The Backyard Bungalow was even better than its description (and the description is fabulous.)
The unit is perfect for a couple, is very private, feels brand new (felt like we were the first guest!), is extremely clean, and is tastefully and thoughtfully appointed. It is located in a real neighborhood, parking was easy, the nearby streets were great for walking, and there are restaurants and grocery stores within less than a mile. Also has great access to Providence Portland Hospital and offices.
The kitchen appliances and cooking utensils make it easy if you want to prepare your own food, there are slippers provided for after you take off your shoes, the view out the kitchen windows was lovely (stunning autumn leaves during our stay,) and it is also dog-friendly.
Only one PS: I am light-sensitive when sleeping so I travel with a mask. It came in handy due to the stunning skylights and dawn's early light. But that is me!