We were a group of 7 staying over at Joao's apartment. We were given a very warm welcome and helpful introduction to the house when we arrived. The house was very spacious and clean. All beddings and duvet covers seemed very clean. Also, the flat was very centrally located and had easy access to everything. There were a lot of restaurants around the area so that was great. However, since it was so centrally located, it could be a bit noisy at night and in the morning. Unfortunately, we encountered a problem with the boiler and most of us had to have cold showers. On the first night, the boiler just didn't work so we contacted joao the next morning and he helpfully sent someone over within 20 minutes to fix the problem. Although the problem could not be fixed instantly, we were told that we could leave the house and they would fix the problem while we were away (so the boiler issue didn't affect our schedule). When we got home a new boiler was installed - although hot water was still sometimes lost so the hot water issue may just be a general issue in Lisbon. Otherwise, our stay at Joao's apartment was very good.