When i was planning for my europe trip, my friends and i wanted to stay in accommodations that are quite ok but within our budget. hence hostelbookers have many hostels/ budget hotels for us to search for and find one that has better reviews and still fit within our budget. most of the accommodations we stayed during our 1 month plus trip were booked via this site. no booking fee charged, it gives slightly cheaper rate than other similar websites.
I would recommend this site to people who have a tighter budget when travelling to europe or other places.