Welcome to the Jayco forum! I do not have that model trailer, but I am sure someone on here has that model and will be able to answer your questions. Hopefully before you head to the dealer.
As far as Jayco in general, I have had a couple of very MINOR issues, but I think you find that all manufacture will have some minor issues.
Since you are looking at a left over model, you will have the warranty to cover any problems you may have.
The trailer that I purchased was a left over model and the two minor issues I had were taken care of by the dealer. One rim was covered with rust spots after about 6 months. They replaced that rim.
The wallpaper border behind our sink started to bubble and lift. Our dealer replaced the border AND placed plexiglass under the window to protect the border from doing the same.