I stayed for one month and it was perfect. I don't usually stay in places with shared amenities on Airbnb, but actually it really wasn't a problem. It's kind of like a big hall, or mansion where you have your own room, but share a kitchen, common areas and toilets etc. Although things were shared, everything was available when I needed it, I never had to wait for a toilet, or somewhere to cook etc. There's plenty of toilets, and showers to handle the other guests. You still get plenty of privacy too. The view from my room was fantastic, looking over the old part of Lisbon. You are located at the top of a hill, but you get used to that after a day or two, and at the bottom of the hill is the very heart of Lisbon. My room was very clean, the shared showers and bathrooms were always very clean. The only downside was that sometimes the kitchen wasn't completely clean, but that was more down to guests, and was never anything major. Overall a great place to stay in Lisbon!