Christel’s place was just as described and fairly modern. It's the right size for two people and has everything you need including dishes, cooking range, and washing machine. The shower in the bathroom is small but that's to be expected in places like Alfama where everything is small.
Also, Christel was very good with prompt replies to my emails and questions. She has very detailed and well written info on getting to her place which could have been tricky to find if it werent for her instructions since Alfama is bunch of narrow winding streets. There are lots of places to walk to for food and entertainment and it's a 15-20 minute walk to Rossio Square.
Recommendation about luggage storage. If you need to store you luggage after check out so that you can explore the city, there is a luggage locker in the Rossio metro station. However, these lockers will mostly be occupied since everyone knows about it. If you get the and the lockers are full, go to opposite side of the metro entrance in Rossio Squre to the Praça da Figueira side. There is a parking garage there and one floor down from the parking garage entrance, you'll find more luggage lockers.