The location is perfection, I would give it 6 stars if it was possible to. You are in the centre of Bairro Alto but only a stone toss away from Baixa-Chiado (the downtown where you can do lots of shopping). This also means you are very close to a metro station so using it as a base to explore Lisbon is great. The apartment itself is quite small but the hosts made sure to use the space efficiently and it has all the amenities you could need. The decor is unique and really makes you feel at home and cozy.
Check-in was seamless and the hosts were very accommodating when we needed to leave our bags early and check out late. I cannot stress enough how welcoming the hosts are, I've been to quite a few spots and never before have I received such a warm and hospitable welcome! I highly recommend this spot to anybody looking to stay in Lisbon, and I will definitely be returning.
The steps up to the house are quite steep though so I wouldn't recommend it for anybody with mobility issues. The ceilings and doorways are quite high for a Portuguse building though so for people of a high height it should be accommodating (I am 6'4" so I've encountered some problems in other accommodation but none here)