We had an amazing stay here, highly recommend it! Helena was great to communicate with and helpful, the apartment is incredible, and there is literally anything you can think of that you might need in the apartment! It was very clean and it was quiet in the evenings. It’s a great location and easy to walk to lots of places and transportation options nearby (bus, tram, ferry). I was there with my mom, aunt & uncle and they also couldn’t stop raving about it (and have high standards). Seemed like a brand new place!
The only thing you really need to know is that getting right to the apartment is not really possible in a vehicle. Helena gave the address of a restaurant for meeting and it’s right next to it which is great, but only taxis and the local residents can enter there. So if you’re renting a car you wouldn’t be able to get close to the apartment. Thankfully for arriving our Uber driver had a pass to get him in the road, but when we were leaving our Uber could not get near us and we had to go track him down by the water where he was going back & forth trying to find it. So you might want to chose taxi over Uber (or tell them pick up/drop off at the Cathedral nearby).
100% recommend this place to stay - if I were going to Lisbon again in the future it would be my first choice.