Great location, walkable to the main attractions. The apartment was clean and the host was very responsive. If you have heavy luggage, it may be a struggle for certain folks as you have to go up two flights of stairs.
Everyone in my group enjoyed the apartment, the only two items to consider are:
1. Location - which is great as I mentioned but there are tons of restaurants on the same street thus the noise does not end till 2AM. It may be a bit troublesome for those sleeping in the rooms facing the street and although when you close the windows it does draw out the noise, but this leads to the second item.
2. It was hot during the time I visited Lisbon and because there was no A/C and it can be quite warm/hot in the rooms. The host did supply fans in each room, which was nice, but it did not help as much, thus sometimes you will need to open the windows.
Other than that, I would recommend this place for anyone who does not mind the two items above.