Five of us went on a jet boat then canoe moose hunt last fall. I saw 4 different types of these cots. All bought from China off Amazon. They all seemed adequate.
I have a KingCamp Ultralight cot that I bought a few years ago. It is not ultralight by any means, but I knew that when I bought it. It is quite easy to setup and take apart. You can get a lot lighter ones for more money, but I wasn't too worried about weight because if I had to carry it on my back, I wouldn't bring it at all. As far as insulation and comfort, you still need to use a sleeping pad on the cot. It's quite a bit better than just a sleeping pad on the ground, but not enough to justify the weight in a pack.
Story time, A couple years ago, I went on a solo overnight trip in my SxS. It was spring and the night time lows were a bit below freezing. I planned to stay in my tipi tent and try out the cot for the first time. I forgot to bring my sleeping pad. Even with the wood stove in my tent, it was a long cold night of feeding wood into the little firebox. My down sleeping bag was plenty warm if I had a sleeping pad, but with just the cot, the underside of my body got very cold. About sunrise, I realized I should have stuffed a bunch of evergreen bows under the cot to help insulate.