Bruno was easily contactable and responded really quickly to all of my emails. Sadly he was out of town during our stay so we never got to meet him, but his friend Joana was extremely helpful and met us as planned, to check us in and explain a few things about the flat, and Lisbon itself. The flat itself is wonderful! The view is incredible (people line up about 50 metres away to get the same view from the Miradouro da Senhora do Monte). The neighbourhood is lovely. Handy supermarkets, local restaurants and it's easy to get to Tram 28 to get around town. There is also a taxi rank on Largo da Graca so easy to get back to the airport too. It only cost us 9 euros!
Lisbon is fantastic, but honestly, the flat, the balcony and the view will mean that you'd be more than happy staying in, and eating and drinking there - who needs a rooftop restaurant or bar, when you have 'The Flat with the View'.