The appartement is very stylish and perfectly located if you want to explore Lisbon. Everything is in walking distance but yet the place itself is quiet, as it is in a small backstreet of the old town.
Check-in and communication was great. The cleanliness was fine, just some minor things could have been cleaner. One downside is that the pictures suggest that the appartement is far bigger than it actually is, due to clever use of wide angle photography.
Highly recommend this place if you are looking for a nice hub to explore Lisbon.