I don't own a Jayco, but their Eagle TTs are tied at the top of my list with Winnebago Ultra Lites and Grand Design Reflections. I have a friend that just traded his Keystone off... and another friend with a Jayco Eagle 5er. The Jayco seems head and shoulders above the Keystone... from their experiences... and mine. I have worked a lot on my friend's Keystone, and the Jayco doesn't seem to need much in the way of repairs.
Good luck with your decision..
Jack and Dee Dee Weatherford, Texas
2014 Ram 2500 Crew Cab 4X4 w/CTD 6.7
2016 Jayco White Hawk 28DSBH Travel Trailer