Ellen's top floor apartment has it all: comfortable living space, a beautiful deck, and located in the perfect part of Amsterdam! Beyond that, Ellen is a terrific person and will help you in any way that she can. The only challenge to staying here are the logistics involved in getting luggage up 4 steep flights of stairs. Unless you are clumsy or have a fear of steep steps, this issue is not a big deal.
I will come back here in a heartbeat when I visit Amsterdam again!