We just took ours in for service last week to Carolina Coach near Hickory, NC. That is where we purchased ours. They have 5 places with "elec only" onsite, but we stayed overnight at the KOA in Statesville, since they can't reserve them.
The original plan was to take in to Montgomery, AL to Bankston. They have 5 bays to work on RV's, where the Jonesboro, GA only has 2. Or so Rodney told us at the Atlanta RV show. But we had to head north instead of south this project.
It was our first experience taking it in. Usually, David does all the dirty work.