We stayed at Jorge's place for three weeks and were very comfortable there. The location is excellent -- easy walking to the Baixa, Bairro Alto, Principe Real, and the waterfront. You must be comfortable with stairs if you stay here -- we counted 75 of them leading up to the door of the apartment! -- but if you're OK with that, as we are, you'll be fine. I also worked from there, using the dedicated workspace, and that worked out well -- the internet was reliable and I had no connectivity issues. The view from the terrace is amazing and Jorge was a gracious and communicative host. I highly recommend this place for a short or long stay in Lisbon.