I stayed here with my girlfriend on our first trip to Portland. The house is about 15 minutes from the airport, and our Uber was $12. It's also about a 15 minute car ride to downtown, so it's a great central location. There are a bunch of restaurants and shops within a few mile radius, so you're surrounded by a bunch of things to do even if you don't want to go downtown.
The house is located in a very quiet, residential area on the lower level of a duplex (I believe the second floor is also rented out, we heard the upper renters a couple times, so if you're very sensitive to noise be aware of this). It's clean, and it gets a ton of natural light. There's a very large kitchen if you would like to cook, stocked with plenty of dishes, utensils, pots, and pans.
Overall, it is clean and minimal, and it is a nice relaxing place. We are happy with our stay.