FWIW, we purchased a new Cougar High Country 321RES last spring and have been very pleased with it so far. We weren't able to use it as often as we had hoped but we have stayed in it with temps as low as 25F and as high as 85F and have been very comfortable. I believe the HC 321RES model has slightly thicker walls...not sure how much that comes into play vs the 33RES but the only thing that would make us happier campers at this point would be getting out more!
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