We had a very nice stay at Luís’s place. The location is really awesome - it's very central and out of the main tourist area by the water. It's right by the Harry Potter bookstore for reference. There is plenty of great food and bars, and a great park for summer evening drinks (the picture in his description) nearby as well.
The air conditioning was really awesome to have in the middle of the summer. The windows are also awesome bc they are double pained and very quiet. We did have a few random seagulls that lived on the roof pecking around sounding like they wanted in, haha.
The apartment was very nice, modern, and stylish. There aren't great views, but a small window with a nice view. The only real downfall was the bed was a fairly small and very noisy. The room is big enough, so hopefully Luís upgrades soon ;)
Luís was also super cool and nice. He helped us find great restaurants and made recommendations for things to do outside of the normal tourist stuff.
We'd stay there again for sure!