We haven't met Miguel in person, but a friend of his welcomed us and gave lots of tips for Lisbon. We've stayed there for 2 days and found the apartment clean, cozy, and well located. The bed in the main bedroom was very comfortable, so we were able to rest well after our long walks through the city. As also said in previous comments, the house is situated on a hill and the apartment is on the 3rd floor, so some people might not find it convenient... but comparing to many central locations in Lisbon, it was quite good :)