We (family of four) had five great days in Joana's nice appartment. The flat is in the second floor (if you have luck, you can see the river Tejo ;-)), is perfectly equipped, very very clean and quiet. It's near to the tramway 28 und close to the nightlife of Barrio Alto and the perfect base for exploring Lisboa.
Joana herself is a very friendly host, she answers immediately and is helpfully. Sadly we did'n meet her in person, but her friend was in the flat to welcome us.
Five stars from us for everything and we fully recommend Joana's appartment. Thanks for all.