So far the tires are great. Way quieter than the Terra Grapplers they replaced, but they did have 85,000 miles on them too.
As for rubbing, I had plenty of that. Took a while with the heat gun in the front of the front tires to make room there. Behind the front tires I had to cut off some of the mudflap, use a BFH to persuade some sheetmetal back a little, then use a heatgun for the rest of the fender liner. The offset of the wheel is what required all this, but I like the wider stance so didn't mind making it work. No modifications at all needed for the rear tires and wheels.