I wouldn't book with them again. I made a booking with cancellation and pay on arrival, was surprised to see the hostel had taken the full amount for my booking today. I went to the accommodation and Hostelworld asking why that happened. They stated it was for bauma and claimed it was in the terms. I checked the app as well as my confirmation email but it said nothing about bauma. I sent them the confirmation email and a screenshot from my app showing it didn't have anything about bauma so they resent me a new confirmation email claiming it was the original which included the bauma conditions, as if it was always there. My original confirmation email sent in November and the fact that it wasn't in the app shows otherwise. This is fraudulent behaviour. You can't change the conditions of the agreement after the agreement was made.