The apartment had everything we needed for three nights in Lisbon, at a good rate. It is well-located in an area with several nice cafes, and it is easy to access the main tourist attractions. I really enjoyed my stay and it was very nice to have two separate bedrooms, both with comfortable beds.
The only thing to note is that the building is near the top of a long flight of stairs, and the flat itself is on the second or third floor, so it may be difficult to stay here if one has trouble with stairs/a lot of heavy luggage. That said, it is probably impossible to avoid stairs in Lisbon.