While I cannot speak directly about the Super Grade, I have purchased 3 current production Mod 70s in the past 2/3 years. 2-Extreme Weather & 1-Featherweight.
The FWT is a safe queen, but I did scope and sight it in. Shoots incredibly well.
The 2 Extreme Weather rifles are in the hands of family members that ranch. Working man's guns. So they spend a lot time in truck/tractor. In a years time they get shot more, and get more real world usage than most hunting rifles do in a lifetime. Each has taken countless coyotes, prairie dogs, and several deer. Flawless performers.
While (admittedly) my decades long love affair with them makes me very biased, I believe the current Mod70 s are some of best all around production hunting guns ever made. Fit, finish, functionality, reliability, handling. They check all of my boxes.
A maple Super Grade in 264 WM would look good in collections. Though they are absolutely too beautiful to hunt with.