Great little place in Alfama with a nice view of the river. Be warned though! Couple of small issues that aren't specific to this place, but more to staying in any apartment in Alfama-
1) It will be cold. All the buildings are old and drafty. Joana provides plenty of space heaters!
2) Stairs. Again, old buildings mean old, rickety staircases. This is a fourth floor apartment. If you are young, no problem, but this is not a good spot for anyone with mobility or balance issues.
3) Hills, hills, hills. Alfama is a beautiful neighborhood but it involves a lot of walking up and down hills and stairs, made of cobblestones that are slippery when wet. Again, not an issue if you're young and mobile, but older travelers should maybe stay somewhere a bit more accessible.
Joana was a great host, and the place is great. I highly recommend the airport pickup, it was super super easy.