The apartment was very large and spacious, especially for one person. Elena was an excellent host and very responsive prior to and upon my arrival and she was very accommodating to my check-in/out times. She had many maps and spent some time with me giving me some tips and showing me on the map. She even offered to give me a ride when we both left at the same time. The location of the apartment is fantastic - walking distance to everything (Last Supper, La Scala, Duomo, and the Brera and Moscova and many other great areas, and metro stops). I would definitely consider staying here again.
My only criticisms are: the bathroom was a little below expectations, but that is truly a design flaw more than a fault of the host (the toilet faces the sink and is very close so it was more difficult to use than it should have been). Also the kitchenette was smaller than expected, and I was disappointed that there weren't enough supplies to cook and the things that were there (pot and kettle) were quite dirty (kettle was so dirty/old I boiled water in the pot). Lastly, the apartment was on the fourth (US) floor, which was a lot of stairs if you are physically challenged at all or have heavy luggage (but not terribly surprised to walk stairs given that most European apartments are older and don't have elevators).