Great American Insurance Group issues RV policies through their National Interstate subsidiary. National Interstate is a well known RV insurer and generally respected. I've used them for 4 years now and find I get excellent coverage at a decent price. Had one claim, a windshield, and it was settled promptly and with absolutely no hassle at all. I chose when and where I wanted the work done and they paid the bill.
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL