Granted I haven't been through that area since 2004, but back in the 70s I worked from Sudbury to well north of Wawa (130 mi. n. of The Soo)
Driving was a fringe benefit with all the interesting terrain.
Great area for stuff to see. Lakes, fishing, mines, Great expansion of population after World War II.
Agree more scenic going eastern way near Ottawa, Algonquin P. Park. Sault Ste. Marie area has some classic tourist sites, canal, locks, rail road trip (especially good in early fall) and other roads both north and south of the Trans Canada Highway. Espanola WWar II museum. Manitoulin Island, St. Joseph Island, etc. Check on current regulations re. use of crown land.
Linger and enjoy.
:B