I definitely encourage you to take a look at
Nat Geo, especially because it sounds like it will either be just you and your DH or three adults given the age of your "kid." Nat Geo has something like five Patagonia trips to choose from. CaliforniaGirl09 and I did their Patagonia Hiking Adventure last November and absolutely loved it. It was strenuous, but so amazing and so worth the effort to get to some of those stunning sites. I definitely hear you on rustic accommodations. I would put CaliforniaGirl and me squarely in the princess camp as well. The Nat Geo hiking trip includes two nights at refugios, which caused us a fair amount of angst heading into the trip. I will say our angst was a bit justified for the first night, which was very much a hostel environment. We did have a private room with bunks, but it was very bare bones and the bathroom situation was not ideal, to say the least. But staying at the refugios is really the only way to combine a couple of point-to-point hiking days in Torres del Paine, and we survived. The second refugio was much much better. We actually stayed in charming cabins (doubles), and the common areas of the second refugio were much more on the charming versus hostel side as well. Still a common bathroom, but again, we survived. The rest of the accommodations were not rustic at all. And, to address sayhello's concern, we never had to carry anything more than our hiking day packs. We did have to pack for the two refugio nights into fairly small stuff sacks while our main luggage went elsewhere, but even the stuff sacks were transported for us by porters who hiked with them. My DH and I are actually looking into one of Nat Geo's small ship trips in Patagonia for a few years down the road, since he opted to skip the Patagonia hiking adventure and now seems to regret it.