The apartment is wonderful, I would visit again in a heartbeat. The location is fantastic, close to shops, restaurants and the ocean, and feels very safe, even at night. The apartment is very spacious and airy. Very clean and well kept too. It work perfect for our family of 5 with 3 kids. Bedrooms are close and in a single floor. It’s on the second floor, 3 flights of stairs up. It didn’t bother us at all (Lisbon is stairs and hills everywhere after all) but if you have mobility issues that might be something you want to consider.
Check in was a breeze, they even allowed us to do early check in (check in is usually 3pm and we were allowed to check in at noon). They left the keys in a locker a couple of blocks from the apartment, and gave us a code. It was quick and straightforward. Highly recommend!