The apartment was the perfect size for a family of 4 (by European standards). The stairs were a challenge but also one of the things we remember fondly. The Eiffel tower view from the kitchen was breath taking. Also a great view of the Panthéon from the bedroom.
The downside of being on the top floor is that the apartment got pretty hot. We had the windows open quite a bit to keep it cool. There was also quite a bit of street noise.
Overall, we had a good stay and would consider staying here again.