I can't speak for all barns. I run a dedicated route out of Minooka, IL. , and very happy with how its run. The few interactions I've had with GA, NJ, and Columbus OH, have been professional/pleasant.
We are a union shop through I.L.A. 1964 (International Longshormen Assoc.)
I worked for Keystone. I never lifted a box. Some retail accounts are strictly no-touch...I was on Best Buy. Had a good run with them, though going into their Secaucus yard was a crap shoot. Also, not union and no backhauls, except for Best Buy returns, or cardboard.