Claudia and Joao were very nice hosts. Their apartment is very beautiful, clean and spacious.
Joao was waiting for us upon our arrival and was very thorough in introducing us to the surrounding city, transportation and the little tricks we needed to know in the apartment. It made us feel very welcomed. He also kept in touch during our stay to make sure we are fine and do not need any assistance.
I would recommend Claudia's and Joao's apartment to everyone visiting Lisbon!