We had a great stay in Luca's apartment - it's really big and the location is amazing - it's literally thirty seconds from the metro station! A comfortable bed, good-sized bathroom and everything you could possibly need in the kitchen.
One thing to be aware of is that it's in an old building and the walls are thin so you can hear the neighbours. It didn't bother us, but it's something to be aware of.
Luca is a great host - he's very quick to reply and is available if you need any help.
Highly recommended and we'd stay again if we come back to Milan.