My 2010 Keystone Laredo 245RL (bought new) has no delam issues. The decals? That's another story ... within a couple of years they all started fading, peeling, cracking off, etc ... that issue is well known and discussed. I live with it.
Other than a couple goofy mis-wired things that I still cannot trace down the place where the wiring installer (not fair to electricians to call him/her "that title") took a shortcut and apparently spliced into other runs for things with bad splices, this trailer has met or exceeded expectations.