I put KO2's on most of our vehicles, I see very little cons to running them on a daily. Now if you want a vehicle to have no tire noise and handle like a car then I suggest you get a car. I never understood why anyone would buy a full-time 4WD vehicle and then complain about fuel economy, tire noise, ride quality, etc. By all means get a tire that suits your needs and majority use, but also get something that compliments the vehicle and it's image.