The place is as they say a small studio, so don't plan to spend too much time there. I'd caution staying there if you're tall (I'm 6'3", 1.9m). The shower is under the stairs, so the ceiling is slanted. It's impossible to shower without bending over the whole time.
The bottle of wine waiting is a nice touch.
Outside of the apt - we didn't end up liking Alfama as much as expected. There are lot of tour groups, people selling shots of liquor to tourists. It's over-exposed.