Myself and a friend stayed for a week at Big Hostel and enjoyed our stay.
It's location next to central station and in the lively area of Surry Hills was perfect. Surry Hills is a great area with lovely little bars, cafes and parks, within walking distance of the centre and other cool areas.
The hostel itself is well run, the staff do a great job of keeping on top of everything and the hostel seems to run like clockwork. Unlike other hostels, you get alot for your money at big. There is an excellent kitchen with plenty of appliances to cook your
meals in and a fairly spacious lounge area(his could do with being bigger).
I had the unfortunate luck if being put into a dorm in which the girls were really untidy... Thankfully the hostel put up a sign for the room that warned against the mess and told them If they didn't clean up they were out (which would have meant me too but the girls cleaned up so no one was evicted). Beds are comfy and there is a small locker for valuables. Lots of the lockers in the room were out of action though.
Room rate includes breakfast from 7-10am. It's help yourself to cereal and toast, tea and coffee and lots of condiments available.
The hostel is mainly young Backpackers looking for work or working and plenty of socialising if that's your thing.