I stayed at Ceciles apartment for a couple of nights with my parents. It was ideal for the three of us, we absolutely loved the location Saint Germain des Pres. It felt very central and close to everything we wanted to do and see. I would recommend taking some time to explore the surronding area as there are some great cafes/ restaurants/ bakeries amd shops. As others have said there are 5 flights of narrow stairs but this wasnt an issue for us as we were prepared for them! Communication was excellent and Lourdes was a great help especially when we forgot the code to the door at 10pm! I would happily stay here again on a return visit to Paris.