We had a great stay at Anna's apartment. Things we liked: great location convenient to the Metro and local shops, separate toilet, good kitchen, beautiful old building. Things we didn't like: the apartment was very hot and has no air conditioning, the neighbourhood is very noisy particularly with the windows open to stay cool.
As the listing says there are four flights of stairs (80 all up) which is a lot!
Anna was a fantastic host though, staying up late to let us in. Overall we would recommend staying here.