A very very smooth stay.
The host is very kind and quick to answer at every message or request. We never met, but everything was perfectly organized. The easy self check-in sure is a way to semplify things.
The place is really tiny, but cute. It had everything we could need for a short stay, it was super clean with a cosy atmosphere exactly as the pictures show. The bathroom is probably too small for a "longer than 3 days stay", but even if it is very small the shower is very comfortable.
The location is perfect for visiting Lisbon, the unit was on the ground floor so from the street you can see inside if you keep the windows open. But for me it was absolutly not an issue.
I would reccomend The blue house, especially for a couple.