My friends and I had a great time staying at Cristina's Airbnb! The communication around the check-in was easy and went smoothly. It was great to have two sets of keys so that our group didn't have to stay together all the time. The apartment itself was great and we enjoyed staying there a lot. The location is amazing, close to a lot of nice spots and must-visits in Lisbon. The only (very minor) downside is some noise because of the building being old, but my friends and I had almost no problems sleeping well (but maybe not so much if you're a light sleeper). Either way, this is definitely the place to stay if you're going to Lisbon with a small group of people!