Apart from the fact that the store here did not know that truck tires used different valve stems, the actual service from them was just fine. They ordered all 6 tires in and called me when they arrived, set up an appointment and removed, balanced, and replaced them all in a couple hours.
They used a spin balancer just like with a car tire. I used the chassis manual to tell them the torque specs as they had no manual for the truck chassis.
Had no vibration or shimmy when completed. We sold the Bounder a year later with about 5000 miles on the tires, so can't give you anything beyond that.
That was the first time I had heard of using Nitrogen in auto tires, but they said that was all they were using now.
I never had reason to go back for balancing and I just used air for any pressure changes made.
Yes, if they have 22.5 tires when I need new ones, I will call and check their prices and use them again.