In addition to all the positive reviews, great location, great host, cleanliness, spacious, informative, eccentric, and overall very good run for your money, Marina was very flexible with our check-in and check-out times, arriving earlier and leaving later: we only stayed one night and she enabled us to benefit from our whole 48 hour which wouldn't have been possible elsewhere.
NB: the construction work did not bother us as we were out during the day, and did not wake us up in the morning either (weekday).
Will definitely save this place for our next trip to Milan!