We had a major issue with the air conditioning not working. This made it hard to sleep at night (room was almost 30 degrees). The apartment is also situated in a busy part of town, which is fun but noisy. Because we had to keep the windows wide open due to the heat, the noise also became a problem.
The team did send multiple repair people but ultimately nothing could be done. They offered a small discount on our stay, which we appreciated. But ultimately our entire stay was a negative experience and took away from our time in Lisbon.
On top of all that, there was mould in the apartment (that they attempted to hide) and the fridge smelled like rotten cheese. The shower was a bit dingy, and the shower door fell off when we tried to slide it.
The staff was always responsive, which was helpful. The space was comfortable and spacious. But we would not come back.