Mario's place is exactly as pictured, and he had someone greet me at the doorway downstairs to ensure I got in. It was very nice of him to wait especially as I took a bit of time from the train station, and it was great to have the flat ready earlier than most check-in times as well after an early train ride from Napoli.
I loved the place for it's unique design and a stellar location (easy walk to Duomo, convenient tram stops right out front that arrived with barely a wait)., though I was smack dab in a great shopping street so I couldn't resist pulling out my wallet.
The only downside was the amount of stairs as there are no elevators to the 5th floor (4th for the Europeans, and especially in that brutal Milano heat!!), and it took a really long time to cool down the place since it is quite large, even with the 2 air conditioners. Apparently there is a little trick to the a/c that I figured out on my own as I couldn't understand why it would shut off the cooling randomly (make sure the dial turns the green light on). Was still worth it for the design and location.