We stayed here for a month after a different place on the other side of Lisbon. The 3 Sisters' place was by far our favourite "Lisbon Airbnb". The apartment is not enormous, but plenty big enough for two people or a couple with children. It was quiet, the kitchen is well equipped and everything we needed was there - including fast internet if you work from home like us (this something I was worried about after the previous place we stayed in Lisbon where the internet was unusable...). All in all, highly recommended! I will definitely stay again next time I'm in the city.