The communication and check-in were smooth and this apartment is extremely well located for exploring Lisbon.
However there were a few things to note - it's on a street with bars open until the early hours. I recommend earplugs and to consider staying elsewhere if you are a light sleeper.
Unfortunately I found the apartment a bit dirty and needing renovation compared to the photographs. It smelled of damp and there was mould in the bathroom. The agency who manage the property were responsive when I raised this issue and sent someone to solve the issues - but I'm not sure exactly what they did when they visited.