Over the years, I have stayed in hotels, with friends, and with family, and I can honestly say that I have never experienced such superb hospitality as with Antonio. We arrived around midnight and were greeted with a bottle of chilled wine and traditional Portuguese pastries because he had noted that I liked to try sweets from all over the world. The kitchen was fully equipped with anything you might need and he even had milk in the fridge in case we wanted to make coffee.
Antonio was there when we arrived to give us the keys. (There are actually two sets, which is incredibly convenient!)
Besides the touching thoughtfulness, the apartment is also amazing.
It's in a great location especially since the city is very walkable, and the view from the apartment is unbelievable. Although the windows are on the small side, you can see the river and bridge - make sure to notice the sunset!
The beds are also phenomenal. I had the best night of sleep in a long time thanks to the comfy bed and down pillows.
There are a bunch of informational books on Lisbon that we used a lot, plus maps. (Also regular books all over the apartment which really make it feel like home.) One of my favorite touches was a book that Antonio had started with advice on what to see and do and then left for guests to add their own tips.

If I had the time, I would have loved to stay for at least a month. My only complaint is that Antonio made it too hard to leave!!