The location is amazing, a short walk from the train station and in the heart of the Alfama, near restaurants, markets, bakeries, music, museums, squares, beautiful walks. Though when we read "views of the river" we were expecting to have them from within the apartment, we loved sticking our heads out the windows to see the sparkling water over the terracotta roofs. We also loved being at the top of the building, but if stairs are not your thing, note that in the US, we'd consider this the 5th floor, and the stairs are steep. You also need to climb stairs on the street to get to the place; the whole neighborhood is full of charming, winding, stair-streets, and people of all ages walking them.
The neighborhood gets loud, with night life, people shouting to each other, and lots of construction (including on the roof and directly outside this apartment). But with the windows and shutters closed, it's fine, and being 5 flights up helps compared to the 1st floor place we also stayed.
We also appreciated that we were able to leave our bags while the place was cleaned, and when the cleaner accidentally threw away our groceries, Tomas went shopping and replaced them.
Note: Tomas accurately lists all the amenities. As a host ourselves, we've noticed that people don't always read the full description/lists. So, this place doesn't have any shower products and is not as well stocked in the kitchen as the others we stayed. But this is not a critique of the place; if you forget to bring shampoo or coffee, there's a dozen markets within a block.