We (4 Austrian guys) had an awesome week in one of the most characterful neighborhoods of Lisbon. Artur, the host, was super nice and gave us really good tips for restaurants, sights and viewing points etc. . (no tourism stuff) Another plus was that he was available all the time for questions.
The check-in and check out was super easy and the apartment was super clean and provided everything you need. (also there is an barbecue!!!!!) :)