I have not but I don't know if I would. They are paid by the dealer, not by you, so they are looking after the dealer's best interests. If I did use the service I would be looking for a good warranty and for a professional inspection before I bought anything.
TakingThe5th - Chicago, Western Suburbs
'05 Ford F350 Crew 6.0 DRW Bulletproofed. Pullrite Super 5th 18K 2100 hitch.
'13 Keystone Cougar 333MKS, Maxxfan 7500, Progressive EMS-HW50C, Grey Water System.