There were no problems in communications with Rui before our arrival. Rui's father has welcomed us and shown the apartment. We were greeted with a bottle of local Portuguese wine!

The apartment description is accurate. It is very authentic Lisbon apartment on the top floor (quite steep stairs, may be not good for old people) with nice view on the river.
Location is good, not far from the main attractions and nice restaurants with fado music.

We've enjoyed our stay in Lisbon.