The place is definitely on the smaller side, but that was not an issue for us, since our lodging was just a place to sleep and store our things.
The Alfama neighborhood is a great place to stay, and this apartment is in a perfect location - right by many restaurants, lookout points, and within walking distance of public transportation.
The place is clean, Céu is really great at communicating prior to arriva and day-of procedures, and the place has all the essentials.