I bought this truck in spring 06 w/70k miles. It was been very good to me even though i have been hard on it. The only issue i had was the CAT and O2 censors went out and i had to get them replaced. I'm thinking that was due to taking it off roading a few to many times. The truck averages about 18 MPG driving around town and has gotten as high as 21 MPG doing 70 on long trips.
Push button 4x4 is great, the 4.3 is strong enough to haul the fourwheelers and get most jobs done.