Good place, in the center. But the staff is not very nice, we had to wait one hour before checking. You have to pay a deposit of twenty euros each. If you want to let your luggage, you have to pay an extra 4e. Actually, you have to pay for everything. In the bathroom, there is no soap for hands. But there are free lockers with plugs inside, which is nice.
The neighbourhood is not very safe at night ; the staff is not welcoming at all, the man does not try to be understandable. You have to let your keys before leaving. There is no kitcken, no microwave, no common space, only a fridge. The room is poorly furnished, and not comfortable.
We had a great time in Genoa and our stay in the hostel was lovely. The host is very nice, you really feel warmly welcomed. The breakfast is good, the rooms are spacious, the bathroom are clean.