Our stay at Mi's place was overall okay but I wouldn't recommend it. It is on the 4th floor with no lift, it's an old flat in an old building and the rooms have no windows. The host could have been a little more welcoming in my opinion, for example, by providing us with a bottle of water on our arrival, more toilet paper and towels and not requesting us to take out the trash.
On a positive note, the location is good, in the center of Lisbon.