It should be made clear that this is not a "traditional" airBnB, it's a hostel. You will not get a room (not even a shared room), you will get a bed in a bunk in a large hall filled with similar bunks, with curtains for privacy.
The locker situation is not great, so I wouldn't leave any valuables in the hostel. Also, the shared shower/bathroom leads to long lines, so keep that in mind.
Still, it's a wonderful location, and was significantly cheaper than all my other options. I'd book again