Mario's hospitality was excellent. When I arrived in Lisbon he was waiting for me at home. He was friendly and willing to help us exploring Lisbon. He sent me many maps with restaurant options, places we could visit to get to know the country better, and even more non-touristy alternatives that interested me a lot. Any time I sent him a message he always responded promptly and effectively.
The house was clean and welcomed us with a bowl of fruit and a bottle of wine were ther for us.
The only problem was that it was getting a little cold and the radiator he had given us did not meet my needs. Other than that I am quite pleased with my stay at Mario's house.