Well, I worked for Les Schwab for many years, and while we did not have those particular tires when I was there, I can say from my experience that those are probably going have pretty good road noise. If they are anything like the makers other tires, they should ride and balance out pretty good. I definately would not expect long life and quiet ride though.
Here is another one they have that is a good cross between on and off road with decent traction and pretty quiet ride.
http://www.lesschwab.com/tires/winter/mudterrainsxt.asp
Have you looked at the Toyo MT? That is an awesome tire, and incredibly quiet for how aggresive it is. It also wears great. I had several customers who were getting 70,000+ out of them on Superduty trucks.