All in all it's a very comfortable apartment and we had a good stay. Cristina and Jhonny were always available for any issues and were helpful. Apartment is very big and rooms quite spacious. It's clean and pretty well taken care of. Makes for a comfortable stay, and the area is great - residential and quiet and very close to the Navigli area with the canals which is great.
The only criticism I have is that the wifi was really bad. It would disconnect every 5 minutes and makes things like streaming or even just regular internet use quite impossible. I ended up using my roaming instead because I just gave up eventually. Jhonny suggested turning the router off , waiting , and then back on again but that didn't help. Another little thing is that the lighting is not so good. There are no fixed lights in the bedrooms or living room, only lamps, and they are quite weak and the rooms quite big. In the kitchen the lights are on the ceiling but they ceiling is so high and the lights are too weak. Last thing for anyone considering staying with an elderly person (I was with my grandma who is 88) one bathroom has a bath, so for someone old and frail it's not convenient to enter because requires lifting the leg quite high, and the other bathroom has just a shower, but the shower space is quite small and the shower head is very large, so floor easily can get very wet and might be slippery. This will not be an issue for someone more mobile. Just a note for older people.