Rui is kind, generous, and very helpful. He recommended very great local restaurants and things to do (we ended up going to a symphony in the national theatre that wasn't planned because of his recommendation, and it was an amazing experience). Rui had breakfast with us and we talked, in the cozy kitchen corner. Rui's house of books is quite a view of its own. Rui's place is very close to the major sights and very lively during the day. Highly recommend!