The apartment is modern, stylish and spacious. There is air conditioning in every room. It was very important for us visiting in February - it was nice and warm inside :)
There was everything we needed for cooking including a coffee machine and a manual juicer so we had several fab breakfasts at home having bought food at a nearby organic supermarket Pure Bio.
It is a bit further from the centre so you cannot walk there, but we traveled everywhere by taxi and it was very convenient. Taxis in Lisbon are reasonbly priced and arrive within several minutes.