We had a great but short stay at Alberto's loft on a layover from US to Rome. Alberto was a great communicator and very responsive via e-mails/messages. It's a very private and quiet apartment with lots of open space. As others have mentioned, access to the metro is super easy and you get can to the center of Milan very quickly and conveniently.

Two notes on food close to the loft:

Caffé Crystal just around the corner on Via Dei Transiti had some of the best pastries we had during our three week trip to Italy. Great espresso as well.

Al Gargano Ristorante at Via Dei Transiti 26 was a great little local restaurant with fantastic pizza, great pasta and very friendly owners. The exterior looks simple but it's well worth your time to check it out.