My best friend and I did a 48 hour stay in Lisbon and loved our stay. The unit was clean, well kept and in a great location. Diogo replied almost instantly.
However, the wifi does not work and the AC was not cold- it merely felt like a powerful fan. So we had to buy data from our mobile providers (we were counting on the wifi at the stay). So for the second night we had to stay at our friends hotel to sleep comfortably. We also also requested a partial refund for the inconvenience and were denied.