Yen and Andrew are both delightful, friendly and gracious hosts. They have a beautiful home that is conveniently located next to public transport, meaning it is easy to get around Portland. I would give my stay there 4.5 stars overall. The three small things that prevent a full 5 stars are:
1. It's clearly a very popular rental, meaning you will likely be sharing the first floor with other guests. This can be very inconvenient when it comes to using the only shared bathroom on the first floor.
2. They did not have central air or a window unit for the bedroom, so it was uncomfortably hot and stuffy at night, especially sharing the bed with another person. Although they provided a box fan, it didn't do enough to circulate the air throughout the room or cool the space down. This is likely just a problem during the summer, and I'm sure the fan is probably enough during the Spring/Fall.
3. I did notice several silverfish around the house while staying there. Although none got into our luggage and clothing, it was still definitely a concern in the back of my mind.
Overall, I'd definitely return for another stay, and I would suggest anyone I know to choose this rental if they were planning a trip to Portland.