Warning: The road condition on this route is a total disgrace!
The condition is definitely worst on the Vest-Agder side of the county border.
Imagine riding on a washboard :-( Unless you are in for some serious
spine-exercise this should be avoided.
And that is a shame really, because the route has
all the potential for a good route.
When it is resurfaced it should be a good/very good route. Until then: avoid it!