Just completed the drive yesterday (Saturday).
It WOULD be a fantastic drive IF "nanna & poppa" drivers and large 4WD drivers would pull over occasionally and let people pass instead of pottering along with half a dozen cars banked up behind them

I hate sitting behind automatic drivers who's break lights are constantly on - that forces ME to brake too
Twice when I decide to overtake "Norweigan style" (mountain roads in Norway are much like this road and Norweigans are known to overtake regardless of speed/road conditions), I was confronted by a motorbike coming the other way which curbed my overtaking enthusiasm drastically
As for driving this road in fog conditions - NO WAY!
Next time I drive up this road I'll be going on a weekday morning, hopefully there wont be much traffic then.