Laminated Fiberglass Walls

[BCwestcoast]

Looking at purchasing a new camper.

Looking for experiences with the Adventurer 901SB / Arctic Fox 865

I like the 2" R13 insulation of the Adventurer, I dislike the layout and storage.

I like the layout and storage of the Arctic Fox but would like there to be something more than the R7? insulation.... (actually, they don't specify what the wall insulation is. Just that it is 5" thick at the crown)

What has been everyone's experiences with the laminated aluminum framed walls with either of these campers?

How has the build quality been?

Have they solved the problem of laminated wall campers coming apart like a cheap watch at the slightest hint of moisture?

[towpro]

some manufacturers have started using 1/4 lauan plywood that is treated to not degenerate when it gets wet.
Example forest river calls it Azdel they use on both inside and outside walls.

I checked north-wood and grand-design, I would expect if they use something different than just plywood they would call it out in advertisements but I did not see it.
but really if you never have a leak it should not delamanate, but I personally have never had a camper that did not leak, even with maintenance 2x per year.