Apartment is in Bica, right next to the famous (picturesque) tram. We feared some noise therefore, but the balcony doors are well insulated and with the bedroom in the back you cannot hear it at all. Only the neighbors can be heard walking above sometimes (or having music).
Generally, I can recommend the location very much since a lot of nice restaurants/ patisseries/ breakfast places are in walkable distance. The apartment is well equipped with essential cooking materials (eg oil, salt, etc.) and washing powder which I find a big plus, too.
Communication with the host was easy, fast and direct. Checkin easy to handle and with early access opportunity.