We had a great time at David's place. It was in a great location where we could walk to the main center in about 10 to 15 minutes and we felt safe at all times. The metro system is also super easy to use. The apartment is located up four flights of stairs so it took a bit of getting used to but we loved how quiet and serene it was. The apartment also had an excellent view of the city. It was very clean and we had what we needed. If you plan on cooking you will need oil and other spices. All in all, I can't think of a better place to stay. Raquel who greeted us was also super helpful and suggested local places to eat and places to go. We loved Porto!