MASSIVE facility. Plenty of space to camp as well as loads of rooms if you require one. There are even budget rooms available, although "budget" on the Nullarbor isn't quite as budget as other places.
There's a pretty substantially sized restaurant here too, so you can save some of your supplies for the long haul ahead.
There is a small museum here with an exhibit about "Skylab" - the space station that crashed near here, spewing part of itself all over the area.