I just purchased a 2008 Seneca 35GS (diesel) with 24,000 miles, and using the VIN contacted Jayco to verify three recalls that had been issued sometime around 2010 were completed.
One had been done- battery cable reroute
One had not- propane line rework
One didn't apply- replacement of transfer switch
I used the local Jayco dealer for the recall work needed.
No problems otherwise as of yet. I have replaced all fluids, repaired many small things either due to lack of repair by previous owners or factory laziness, and have been trying to bring it to a state better than it was delivered in 2008--such as replacing the factory KYB shocks with Koni, adding a Safe-T-Plus, and etc.
This is the newest RV we have had, but it will wear and depreciate at the same rate as the older units we sold.