Luis place is a great oasis in the middle of Bairro Alto.
Within a few minutes you're at tons of restaurants, bars and cafés (right across from the apartment is the roof top bar Park, which is great for a sundowner).
The communication and check-in were super easy, Luis responds within minutes and also let me store my suitcases when I arrived before check-in.
Whenever I had questions, he was directly available to help out with anything.
I had a great time and would come back anytime :)