As I have mentioned before I have a Rohloff with chain drive and one with belt drive. The belt drive works as advertised, I have had no problems with it and Andre, I haven't noticed the belt picking up any oil from the hub.
However. I don't think I will do another belt drive, the difficulty is if you are going to change anything, cogs or belt wheels, its ridiculously expensive even before you consider the cost of a new belt and the new belt must be sized precisely.It just doesn't offer any huge advantage to offset those considerations.
As to South African delicacies I have little to offer, but I did have a South African girlfriend. That, I would recommend.