There's not much to dislike about this wonderful rental.
It has pretty much everything you'd expect.
Of note from our experience:
1) Perfect location to explore the city from, whether on foot, using Metro 2 blocks away, or getting Uber lifts. You can walk to the Ferry terminal as well if you want to venture across the river. Plenty of places to eat nearby.
2) Clean place with everything you'd typically need for a pleasant stay.
3) Though we are big people and prefer a King sized bed, we got better sleep here on their Queen than we did in a high end hotel in Porto on a King. It was quite comfortable.
4) Washer/dryer worked pretty well once we figured out how to use it. It's a combination unit that does both, which we don't have in the states, so it was confusing to figure out the right settings. We still don't know if we got it right, but it did the job.
5) Communication was quick and helpful via text, and even Facetime (to help figure out the washer/dryer).
I'm SURE I'm forgetting some things. In the end we mostly slept and had breakfast there due to all the walking around we did during the daytime. Props to EcoMassage a few blocks away for helping to ease some of the walking wear and tear on short notice. If it's your thing, check their reviews and book an appointment.
In the end we would not hesitate for a moment staying here again should we get to visit the city again and it were available (I still can't believe how lucky we were that it was).