Help deciding and alumn vs wood frame question

The wolf pup black edition boast of having improved thermofoil artic insulation vs it's base models. What that actually means I have no idea lol. Maybe it closes the insulation gap a little? Here is a link to a dealer that actually posts what the black edition comes with (forest rivers website doesn't that I could see) http://www.whitehorserv.com/2018-forest-river-cherokee-wolf-pup-18to-black-label-new-travel-trailer-nj-i2258492