Met up with Sergios friend at the door of the property -he made us very welcome and showed us round the flat and assured us that if we had any problems, he was only at the end of the phone. The flat hadn't been cleaned at that time as Pasquale had had a problem getting to the flat earlier. However, we took the chance to explore the area for an hour or so before returning to the flat.
The flat is in the perfect location for exploring Milan and was adequate for our needs -we would certainly consider returning in the future.