This is for sure the cutest aparment I've stayed in in whole Portugal. It's in a really old small house right in Bairro Alto.
Please note that you need to climb a really steep staircase to get to the apartment with approx. 30-40 steps which can be quite challenging with a heavy suitcase.
Also it can be quite hard to find a place to park your car nearby but I guess that counts for whole Lissabon.
The apartment is small but provides everything you need except a stove. But there's plenty of good restaurants around. Due to its location, you can easily get everywhere by foot but it can be quite noisy at night as there's some bars right around the corner. If you decide to stay right in the middle of Bairro Alto, you can't complain about noise though ;)
We really loved the small and charming apartment with it's leaning walls and floor :D
Check-in was easy.
Would definitely recommend and come back.