This is an Airbnb listing for a commercial hostel. The hostel is great. As far as hostels go, I’d definitely recommend it.
It’s cheaper just to book through the hostel directly though. Given that I never heard from the “owner” Fabio when I texted him, and so figured out location and check in on my own, I wouldn’t recommend going through Airbnb as there is no added value for the added cost.