The house is nice. I like the interio design, and I appreciate how much little details the host has put in during the decoration.
But, even though I understand that late check-in for airbnb sometimes can be inconvenient for the host. But 80 Euro in cash just for being late is really too much. There is a lot uncontrollable things during traveling, we don't want to be rude or be late.
For the location, well . North part of the Milan is 10 times better, but you probably have noticed the North Milan is more costy. So, it's really not bad for the price.
So if you are traveling on a budget, you like design and you don't mind the less urban neighborhood and potential late fee, go ahead book it.