Dutchmen Atlas or Keystone Cougar

I would stick with the cougar as they are now warrantied for full time living as of this year...not sure if the Dutchman carries that same warranty. I would say the tank heaters over none would def help you out too in colder climates. I am also curious what the R value rating is on the units as neither state what they are. I know grand design has high R values of 40 roof 30 floor and 9 for the walls with some up to 11 on the walls....my passport if I remember correctly is only R11 ceiling and floor and 7 for the walls...being full time this could make a big difference in heating and cooling your rig. Sorry I don't know much at all about the in-command system.