The Silent Armors are fair to good. I've posted a few times on a thread I started last year about these tires, but I will give you my opinions now after having put about 30,000 miles on them.
Living in Florida, I of course cannot speak to any winter conditions.
My take on them is that they are ok. As far as appearance is concerned, they really LOOK great. They ride smoothly and are quiet.
Now, Goodyear's website touts the extra rubber for cushioning purposes, supposedly to better absorb road imperfections. I have NOT noticed any difference between the Goodyears, the Cross Terrains I had earlier, or Maxxis tires on my girlfriend's Tahoe.
True, the extra weight of the tire has made gas mileage suffer by 2 mpg or so.
And - my biggest complaint - they hydroplane too easily for me. Living down here, I need a better wet-traction tire....so I probably will not buy these again. YMMV.
I only bought these bc I got all four of them for less than $600 out the door - mounted, balanced, tax, you name it.
My next tire will be the Maxxis Bravo HT 760. They ride great, they are quiet, the wet traction is great and they are $100 bucks a tire.
Hope that helps.