Very friendly, very professional hosts! You got all the materials, information about Lisbon in advance and on the spot (guides, maps, tipps to go out, eat, etc.). The best and highest level of service we have experienced so far at airbnb.
The location is superb, very close (7-10 minute walk if you are 2m tall ;) to some of the main attractions, downtown. At the same time a quiet street and neighborhood, without tourist herds (in February).
We haven’t cooked, but the kitchen appeared fully equipped, so the flat is suitable for a longer stay.
Definitely worth trying out this place. It is a very lovely and cosy spot! (Although artificial flower/plant allergic should be aware that there are some of these objects around ;)
At the time of our visit there was a construction site opposite of the flat's entrance. It did not disturb us at all (no noise). You should take into account that there were lot of construction sites in downtown, these visual disturbances are part of the town these days.