I have just spent the June long weekend there and found the location to be fantastic. There was 9 of us camping and we had the place to ourselves, whereas the campsites up at the National Park (Dandobah, Wescott etc) were completely full.
According to the owner of the proerpty once she has 10 people on-site she shuts the gates and puts up a 'no vacancy' sign... I don't know how true that is.....but it does mean that you won't be sharing the campsite with a whole bunch of other people.
The location of the park I though was the biggest feature, situated in a beautiful little valley at the base of the Bunya mountains. If you get a chance take a walk down the hill at the back of the park towards 'Gertrude's Grave' which is a lonley gravesite dedicated to Cedar getters wife who died over a 100 years ago. The valley in which the gravesite is located is very pretty, and you are more than welcome to walk around and do some exploring.
The only concern were the toilets and showers, which were not all that clean (and did not get cleaned the 3 nights we were there) and if you had to share the park with a bunch of strangers, then the lack of cleanliness may start to bother you. With only us being at the park, it didn't bother us. ( A tip would be to take you own cleaning supplies with you).
I do have photo's but I don't know how to upload them onto this site. In all honesty the photo's won't really show you much, it really is best that you take the journey out to the park and experience it for yourself.
I have visited a lot of National Parks and campsite throughout Australia, and Bushland Park certainly rates up there as one of the more enjoyable (even it it was a little un-clean). Futhermore, Bunya Mountains National Park has some of the best bushwalks that I have been on for sometime, making the trip out there completely worthwhile.