The first half of the route has lots of really nice straights.
And the second half has lots of nice corners. Schitzofrenic almost ;-)
The route ties together E16 and E4,
and thus provides a corridor for those that come from the South of Norway,
are heading North, and want to avoid Oslo traffic.
Along the route you can visit the
Museum / Art Gallery Kistefos, which is well worth the time.
They have a good collection of contemporary art.
You can also visit the Hadeland Glassworks
, where you can learn all about making glass and purchase at factory-outlet prices.