Check-in was fast. The apartment is very close to REALLY everything. It really gives you a very local feeling. You have a very nice, equipped kitchen as well. There was coffee powder for us that saved our mornings. (Only the knives are super unsharp and you couldn't even cut yourself with it.) - SAFETY REASONS? :-)
The bed is huge and the beautiful sun lights are shining on you every morning, thanks to the good position of the windows.
Mind, that the bathroom is going to smell a bit due to the old sewage system - this is completely normal in Lisbon! You don't go there for hours anyway, I believe.
We loved to stay in the apartment!