Towing with a 2007 Tahoe (Question for a relative)

I am the relative that he is referring to. I appreciate the feedback. I am leaning towards the Hybrid, but I have heard people complain of them leaking where the canvass meets the hard side. My wife on the other hand is wanting a hard side all the way around with a queen bed that you can walk around with bunks in the back. I have great advice that tells me, everything with a TT is give and take.