The space is as everyone else say, perfect for 1 or 2 people and well put together. Betty is a great host whom will communicate fast and well with you, also in case of any arising issue she is professional and friendly.
Location is good logistically but also in an area which can get dirty and a tad loud quick because of nearby bars.. yet it has all you need at walking distance.
Bed needs to be substituted entirely, which host promised to do :) Overall a very good stay, recommended to fellow travellers. Enjoy Milan!