This was a great three days stay at the Antonio's flat. The flat is relatively small - for 1-2 persons - but cosy. Being located in the centre, this is everything a tourists needs for couple of days in a magnificent Lisbon. I haven't had a chance to meet Antonio but he was very helpful with online communication.
There's also one thing to mention that can be both positive and negative. The house is close to some bars and pubs closing down late at night. So if you are willing to party with Portugese/international crowd till late hours, that's a right place! If you intend to sleep well and, let's say, wake up tomorrow morning for an early tour, ear plugs are the must!