Although you are repairing potholes, concrete strip roads will pay off better than the tar road which was put on an unprepared base and will continue to give trouble. The last stretch of approaching road was rough. A signpost from the Bergville turnoff would relieve anxiety!
Directions via Winterton from Johannesburg would be better than from Estcourt and the website could give more information about what to bring e.g. towels and bedding provided, no fresh produce available. However, I think this is still one of the best spots to go in SA and we shall be returning and thank you for your efforts.