We drove down from Canada to stay at Martina's place in Portland for a long weekend. There were 6 of us that stayed there, and we had no issues. The place was very clean, and comfortable. We didn't use the kitchen much, but anyone could easily make meals there if they wanted. The air-conditioning was incredible, and was a great relief since we came down during the heat-wave.
The location worked well for us for a place that isn't right in the middle of downtown. It was a $11-$15 (USD) Uber or Lyft for 6 people early in the day to get right to downtown, which was pretty reasonable. Cost even less if you're taking public transit ($2.50USD I believe)
My friend and I comfortably parked both of our 4-door sedans in the driveway, in case you're planning on taking more than one vehicle.
Overall this is a great place to stay for the price, and I would recommend Martina's place for anyone wanting to plan a trip to Portland.