Well, I wear Justin's now, and comfort has been pretty good. They are s slip on calf high boot. I have changed insoles 3 times, but now the outsole is shot. At 270 lbs, I think I'm hard on boots.
I wore Red Wing slip on's before and got ~8 months out of the first insoles. And the second kept them going another 6 months.
I think I will be going back to Red Wing. I have had like 5 pair of Red Wings and only 1 didn't last a year.