African Dawn / ALL AFRICA volunteers

Hey there!
I would like to go for some time to South Africa to work there as a volunteer.
Especially I am interested in the project called African Dawn, a wildlife sanctuary which is located between Port Elizabeth and Jeffrey's Bay.
If there is anybody who already went to that project I would be really happy about some information about it which don't come from organizations or the project itself.

My second question concerns the organizations.
I found an amount of them but maybe there are some people who have already made some experiences with the organization ALL AFRICA volunteers (or even with "auszeit weltweit")

I would be really thankful about any replies :)