We've had a wonderful stay in this apartment. It's situated in the middle of Alfama and is a great place to stay if you want to visit Lisbon. The apartment has everything you need and was well taken care of. The only (minor) downside is the sofabed which is a bit uncomfortable for a weeks stay.
Carla is a great host, she responded very quickly to our questions and reservation. All in all we highly recommend this apartment!