We really enjoyed our stay at Goncalo's appartment! It's nicely located, has all the required equipment (a washing machine! a moka pot!) and surprisingly spacious! As the reviews mention, the location is naturally noisy (one of the most active restaurant districts in Lisbon), but it only affects one room out of the two. The noise is very easy to suppress with a white noise machine (we used an app on a cell phone) and were able to sleep comfortably even on a New Year's Eve! We highly recommend the place.