The apartment was great and check in was simple. Beautiful view from the suite at the top. There are lots of stairs to get to the road where this AirBnB is located, so can be tricky with luggage etc. However, the location is central to Lisbon, so you won't have problems going around after.
If you plan on eating at O Velho Eurico (restaurant nearby), be sure to make a reservation in advance to avoid the long wait.
Host was willing to accommodate a later check out!