When I ground hunted more it was my GO TO seat. I think the most adaptable common sense ground seat made. Killed a lot of deer and other critters off it. The advantages to me is it's not a tree seat thus requiring a tree to use, it's relatively light weight, durable, it's single post design requires "something" to lean back on IMHO but that can be a stump,a blown down tree, a rock, a tree etc. It doesn't require level ground is another bonus.
I actually found it to be the most comfortable seat. I believe where everyone musses up is sitting on it with the single pole vertical or plum to the ground. Actually finding the sweat spot so it's angled back towards what ever you leaning against is the trick. It can be very comfortable then. Then when game approaches you can lean it forward and rotate or spin for the shot angle. I will say the price is quite high now as to what I paid for it way back when. But I ask you have you ever seen one for sale used? Me either.