Amazing location - not noisy, in my opinion, considering it's in the dead centre of Navigli, the nightlife centre of Milan! Flat is cute but could do with updating - I was there for a long stay so bought new frying pans, a toaster, and bins for kitchen, among other things. The fridge and freezers needed replacing (they kept on filling with ice) but Max said he wouldn't replace them for another 6 months. We had plumbing problems with the flat which, to be fair, the owners resolved as fast as they could, but they still affected me for several weeks and took up a ton of my time. Max lives in Florence so the flat's managed by his sister who lives nearby, and is super-friendly and efficient.
So overall a few problems, but worth it for the location and friendliness of the hosts! They were also very accommodating of my cat. :-)