We stayed four nights in this stylish and comfortable apartment. It is well stocked with everything you need and is in a nice, local, residential area. Close to everything but not crowded with tourists. We walked everywhere - of course there are plenty of hills but that's part of the beauty of Lisbon. Check in was easy, the hosts were very easy to communicate with and had lots of tips for the local area.
There is some noise from people walking in the apartment upstairs but it was very quiet at night, no traffic noise.
I wouldn't hesitate to recommend this as a great place to stay in Lisbon.