The apartment is well equipped and is beautiful! It's in a great location (near the Fado restaurants in Alfama) and has a view of the river and Sara and Jorge gave us excellent tips about where to eat.
As other reviewers have noted, the ceilings are low and the stairs are tricky so taller people and people who don't cope well with stairs should probably book elsewhere.
Unfortunately, the Wi-Fi wasn't working when we were there which had flow on effects for our next stop (including getting lost!). Sara and Jorge were most apologetic about the Wi-Fi. My tip would be to check that the Wi-Fi works during check in as I'm sure that Sara would have been able to sort it out more quickly if we had done this.