Portugal is a beautiful country. Alfama is an unique neighborhood. We enjoyed our stay at Luis' place. Everything would be perfect if I was not pickpocketed TWICE in the town square. :'( Both of my I-phone and wallet were stolen.
I don't think I will ever return to Lisbon. I travel so much, never had such a horrible experience. But that has nothing to do with the apartment. -:). It's clean and bright with lots of windows. And Luis is an excellent host. He's responsive and replied to all the emails and phone calls in a very timing manner.
He went above and beyond his duties to help us due to our unfortunate circumstances. If you plan to visit Lisbon, I'd recommend Luis' place. But please be EXTRA careful with your belongings. 25% of unemployment rate is no joke there.