If you are pondering whether or not to book, I would suggest you just book.
Putting it simply, the hosts are amazing.
The apartment location is perfect. A short stroll will lead you to public transport, and a few steps will lead you to wonderful restaurants, bars and whatever tickles your fancy.
With the accommodation taken care of, and hosts more than happy to help with any queries, (as well as steer you away from the tourist traps) it leaves you to experience Milan on your terms.
You won't go wrong.