Mario is very friendly easy-going host, who seems to be always on phone - any time I've sent him a message he gave reply in just few minutes, or even quicker. He put a lot of efforts to make his flat a fine place for other people to stop and thought everything well through. Even though I met him only on my third day of staying there I didn't have any problems before that - everything was well organized, the instructions have been very clear, and if I needed to ask anything he replied momentarily.
As it says in the description, the flat is very close to the metro station and the main shopping street, but it's not a noisy place at all. The breakfast at the cafe is pastry+coffee(+juice), as I understand that's a typical breakfast in Portugal. I also used the kitchen several times to prepare some quick meals, the kitchen has quite a lot of space and very convenient to use.
All in all, Mario's flat is a really great place to stay at!