Had some 35" grapplers on my truck when I bought it and they were so loud on the street that I couldn't stand them. The guy that sold me the truck said he bought them not too long before I bought the truck and they were already worn down pretty far so I had to replace them. They looked badass and do pretty good off road just depends on the road volume you prefer.
I will account for the loudness also. My cousin runs the 38x15.50 grapplers on his f-350 and they are a whole lot louder than my IROKS. They're a good looking tire and do decent offroad... just not as sticky as the swampers in my opinion.