Was a great view and couple of areas to play in but not a serious trip at all. It may have got a lot worse since though. I heard the egmont club were planning to use it as a special stage in a winch comp. Pretty scary if you go off the course.
Was just in there on Sunday, there are a couple of difficult bits and I wouldn't recommend going in there without at least one capable truck with a winch. Also, don't go in there if you don't want panel damage. It is a public road to my knowledge but there is a fee per truck payable at the Whanga pub to help maintain the track. About 2 to 2 1/2 hours trip from Wanganui to the start at the pub.