This is a fantastic place to stay. I would highly recommend it. It is in the center of the city with easy access to almost anything that you need. We had three different tours booked and each started within a three minute walk. Clean, well stocked, and excellent communication.
A few things to look out for. 1.) While amazing, this apartment does not work for anyone with a disability around movement. The stairs are legit. If you have any issues with mobility, this apartment will not work for you. 2.) WiFi was a little weak which was not a major problem, but something of an issue. 3.) There are no extra towels. Just five bath towels. Again, not a real issue for us but could be a problem for someone.
Overall, this place was amazing. We loved it nad would recommend it highly for anyone traveling in Lisbon.