We had a great time staying at Rachel's apartment on Mississippi Ave. Her apartment is clean, in a very trendy location, and the apartment itself has a fun "Portlandy" character to it. The apartment is indeed on top of a coffee shop and around 6am you can hear music and espresso being made, so if you are a light sleeper, be sure to bring some earplugs. It's a rather large one bedroom apartment with a separate bedroom and living space.
The process of getting keys was not difficult and Rachel communicated well. Rachel provided a booklet to recommend great places to eat, drink, shop and sightsee in Portland. She even made sure all her toiletries (soap and laundry detergent) were unscented/hypoallergenic. The place comes equipped with a shared laundry unit in the basement.