Had it a year now. We don't full time in it but we do a week or two at a time or long weekends at least twice a month from April through October. The floor plan for us two is terrific. Nice high ceilings throughout the coach, even in the LR. Roomy bath. Plenty of cabinet space. So far only warranty issues we have had were a couple trim items and a slight leak from the p-trap under the kitchen sink. Fixed promptly with zero hassles. Plenty of storage in the BR as well. We could full time in it if we wanted I suspect but for us it's a nice frequent get away. One thing, the tires from Jayco (Raniers 235/80R-16) suck. Replaced with Maxxis 8008's. 80lb rims so need to replace those later to 110lb then I will go with Sailun's.
All in all, the 339 was for us a smaller more affordable version of the Pinnacle FL's.
2014 Dodge 3500HD Cummins Crew Cab, Dually, Aisin, 3.73, 4x4, Long bed, Curt Q20. Appliance White!
2015 Jayco Eagle 339 FLQS