We own a Jayco 31.5BHDS, 2008 Model. One of the issues is that in the front area where the bunks are, it can get warm if you camp in hot climates i.e. south during the summer months. We have a 15,000 BTU AC unit, and it is not enough to keep that area cool. Possibly they have improved the air distribution system on newer models. We also had both frame rails crack above the axles. I suspect that this problem is not unusual with the manufacturers making trailers as light as possible now days. This also may have been re-engineered but frames are now being made by Lippert so I don't know. (The frame on my trailer was made by Dexter which the frame manufacturing division was bought out by Lippert sometimes after 2008. Any other questions or information, just send me a pm. Of course we have had other minor issues to deal with, but I would consider them typical for any RV.
2005 Dodge 2500 CTD ShortBed Quad Cab
08 Jayco Eagle Superlite 31.5FBHS
Line X
Superglide Hitch
Prodigy Brake Controller