I had not played them in the 70;s but a guy brought one and it was a pretty cool guitar, lots of tonal variation, and a somewhat "Fender-y" maple neck. Of course the pickups are different, but it was an early all maple Gibson, and designed by Bill Lawrence if I recall.
I'm really intrigued by those Raw Power SG's. I'd like to find a good used one. Maple is much stronger than mahogany, which is good for me. As much as I love my SG's, I find that I always hold back a little on them because I am afraid that they will break. Fenders, on the other hand, you can throw them across the stage and they are just fine!